人妻丝袜中文字幕久久,亚洲天堂av免费在线看,亚洲午夜片,91蜜芽尤物福利在线观看,22sihu国产精品视频影视资讯,av中文字幕一区二区三区,国产成人福利av一区二区三区,亚洲av套图一区二区
廣州易測(cè)儀器有公司(法國(guó)來(lái)美粘度計(jì)、流變儀、質(zhì)構(gòu)儀技術(shù)服務(wù)中心),是一家專門提供世界各知名品牌儀器、實(shí)驗(yàn)室儀器整體配套方案、儀器維修和實(shí)驗(yàn)室設(shè)計(jì)的專業(yè)儀器技術(shù)服務(wù)網(wǎng)站,業(yè)務(wù)覆蓋從基礎(chǔ)型到大型專業(yè)化實(shí)驗(yàn)室、工業(yè)檢測(cè)儀器;由于廣州易測(cè)儀器多年來(lái)一直服務(wù)于國(guó)內(nèi)各行業(yè)不同領(lǐng)域,積累了豐富技術(shù)服務(wù)經(jīng)驗(yàn),現(xiàn)已成為多個(gè)著名品牌的國(guó)內(nèi)授權(quán)代理商; 法國(guó)來(lái)美粘度計(jì)、流變儀、質(zhì)構(gòu)儀技術(shù)服務(wù)中心主要業(yè)務(wù)儀器維修/應(yīng)用測(cè)試/安裝調(diào)試/技術(shù)培訓(xùn)/專題講座/銷售等 進(jìn)口儀器批發(fā)、維修:更專業(yè)、更實(shí)惠!讓您繁瑣的工作變得簡(jiǎn)易是我們的工作目標(biāo)!
 

關(guān)鍵字:
查分類:
您還沒有登陸
歡迎登陸注冊(cè)后購(gòu)物
  110C-01A.. ¥0
  D10P-16型.. ¥0
  D10P-17型.. ¥0
  D10P-19型.. ¥0
  D10P-20型.. ¥0
  D10P-26型.. ¥0
  D10P-29型.. ¥0
  D10P-35型.. ¥0
  YSI ORP1.. ¥0
  D10P-53型.. ¥0
       進(jìn)口粘度計(jì) 流變儀 質(zhì)構(gòu)儀-廣州易測(cè)儀器有限公司 >> ETT中國(guó)易測(cè) >> X熒光光譜儀>>ETT-Ux-210 X熒光光譜分析儀X-ray Fluorescence Spectrometer

商品名稱:ETT-Ux-210 X熒光光譜分析儀 X-ray Fluorescence Spectrometer ROHS檢測(cè)儀
 
 ETT-Ux-210 X熒光光譜分析儀 X-ray Fluorescence Spectrometer ROHS檢測(cè)儀
  商品編號(hào): 2012731878
  商品規(guī)格:
  商品品牌: 易測(cè)ETT
  商品比較:
  商品庫(kù)存: 10臺(tái) 熱賣中
  商品折扣: 0折 ( 贈(zèng)送積分0分 )
  瀏覽次數(shù):
  購(gòu)買數(shù)量:
市場(chǎng)價(jià):
¥1.00元
會(huì)員價(jià):
¥0.00 元
VIP 價(jià):
 
 
2.2 儀器特點(diǎn)
1、安全性能
三重射線保護(hù)(軟件、硬件、迷宮設(shè)計(jì)),全面確保操作人員人身安全與意外操作帶來(lái)的輻射傷害。
2、硬件性能
1、大樣品倉(cāng)設(shè)計(jì),適應(yīng)于大樣品的檢測(cè),部分取代手持式XRF功能;
2、先進(jìn)的模塊化設(shè)計(jì)理念,保證了儀器后續(xù)的高擴(kuò)展性;
3、探測(cè)器采用美國(guó)原廠高端器件。
3、軟件性能
1、最新優(yōu)化的V6.0分析軟件可根據(jù)樣品材質(zhì)、形狀和大小自動(dòng)設(shè)定光管功率,既能延長(zhǎng)光管使用壽命又能充分發(fā)揮探測(cè)器性能,大幅提高測(cè)量精度;
2、業(yè)內(nèi)唯一提供開放式工作曲線標(biāo)定平臺(tái),可為每家用戶量身定做最佳的有害物質(zhì)檢測(cè)和控制方案;
3、融合了一系列先進(jìn)的光譜處理方法,包括FFT(快速傅立葉變換濾波)、精準(zhǔn)的背景扣除方法、微商自動(dòng)尋峰和Quasi-Newton(準(zhǔn)牛頓)優(yōu)化算法等;
4、國(guó)際領(lǐng)先的XRF分析軟件,融合了包括經(jīng)驗(yàn)系數(shù)法、基本參數(shù)法(FP法)、理論α系數(shù)法等多種經(jīng)典分析方法,全面保證測(cè)試數(shù)據(jù)的準(zhǔn)確性。
4、其它特點(diǎn)
1、可根據(jù)用戶要求自行定制測(cè)試報(bào)告輸出格式(Excel、PDF等),符合工廠多種統(tǒng)計(jì)及格式要求。
2、測(cè)試數(shù)據(jù)的分級(jí)管理,進(jìn)一步加強(qiáng)測(cè)試數(shù)據(jù)的嚴(yán)肅性及質(zhì)量品控的可靠性。
3、可以提供六價(jià)鉻定量測(cè)試技術(shù)與附件、鍍層測(cè)厚和多元素分析軟件(用戶需另行購(gòu)置)。
4、多語(yǔ)種軟件界面可供選擇。
 
2.3 儀器技術(shù)指標(biāo)     
技 術(shù) 參 數(shù)  
1、 儀器尺寸:640(W)x474(D)x412 (H)mm         
2、 樣品腔尺寸:
小樣品腔:300*300*100mm;
              大樣品腔:無(wú)限制,小于30公斤
3、 重量:約50Kg
4、 工作環(huán)境溫度:溫度15—30℃
5、 工作環(huán)境相對(duì)濕度:≤85%(不結(jié)露)
6、 可分析元素范圍 : K-U
7、 最低檢出限:Cd/Cr/Hg/Br≤2 ppm ,Pb≤5ppm  
8、 測(cè)量時(shí)間 :200-400s ( 系統(tǒng)自動(dòng)調(diào)整 )
9、 最佳分辨率:149±5eV
10、 輸入電源:AC 220V~240V,50Hz
11、 額定功率 :350W
三、儀器硬件主體配置
3.1 探測(cè)系統(tǒng)
1、探測(cè)器 
類型:電制冷Si-PIN探測(cè)器
制造商:美國(guó)Amptek公司生產(chǎn)
(采用PIN結(jié)構(gòu)的高性能電致冷半導(dǎo)體探測(cè)器)
Be窗厚度:1mil
DC5V電源供電,USB超高速信號(hào)輸出,
致冷方式:采用2級(jí)半導(dǎo)體致冷
探測(cè)器晶體厚度:500μm
探測(cè)靈敏面積:6mm2
集成MCA多道脈沖分析系統(tǒng),2048道(最高8192道)
分辨率能達(dá)到149±5eV;
 
 
3.2 X光管
圖   片
制 造 商:丹東科維
電    壓: 0 ~ 50 kV
最大電流: 1.0 mA
最大功率: 50 W
燈絲電壓: 2.0V
燈絲電流: 1.7 A
射線取出角:12°
靶    材:Mo
Be窗厚度:0.5mm
 
 
 
3.3 高壓電源 
圖   片
生 產(chǎn) 商:美國(guó)Spellman公司生產(chǎn)
輸入電壓: DC +24V±10%
輸入電流:4.0A(最大)
輸出電壓: 0 -50KV & 1mA
最大功率:50W
電壓調(diào)整率:0.01% (從空載到滿載)
電流調(diào)整率:0.01% (從空載到滿載)
紋波系數(shù):0.1% (P-P值),8小時(shí)穩(wěn)定性:0.05%
 
3.4 微動(dòng)平臺(tái)與高分辨率CCD
 
載物測(cè)試平臺(tái),配有微調(diào)裝置,可方便的實(shí)現(xiàn)檢測(cè)物的定位與檢測(cè)區(qū)域的調(diào)整。
120萬(wàn)像素的CCD攝像頭,可有效的實(shí)時(shí)觀察測(cè)試區(qū)域狀況,并拍下物料照片,作為檢測(cè)報(bào)告的組成部分。
3.5 大樣品腔
 
小樣品腔尺寸(閉倉(cāng)門測(cè)試):300*300*100mm
大樣品腔尺寸(開倉(cāng)門測(cè)試):無(wú)限制,部分取代手持式功能。
3.6 散熱系統(tǒng)
高效三維散熱系統(tǒng),大幅度提供儀器的可靠性、穩(wěn)定性
3.7 防輻射安全系統(tǒng)
三重射線防護(hù)系統(tǒng)(軟件、硬件、迷宮式設(shè)計(jì))
四、儀器軟件配置
4.1 儀器操作軟件功能    
1、功能
1、可以輕松應(yīng)對(duì)歐盟ROHS、EN-71、美國(guó)HR4040、 ASTM963及其他控制元素的相應(yīng)環(huán)保指
令 。根據(jù)客戶實(shí)際情況還可以對(duì)銅合金及金屬材料進(jìn)行成分分析,取代了傳統(tǒng)的火花直讀光譜儀;
2、元素分析范圍:從鉀(K)到鈾(U),ppm量級(jí);
3、分析方法:綜合應(yīng)用經(jīng)驗(yàn)系數(shù)法、基本參數(shù)法等;
4、分析報(bào)告:多種語(yǔ)言格式(簡(jiǎn)體中文 繁體中文 英文等)及文檔格式報(bào)告,如Excel、
PDF等,預(yù)設(shè)標(biāo)準(zhǔn)模板,用戶還可以自定義模板格式,所有文檔可自由打印和保存;
5、數(shù)據(jù)自動(dòng)保存:所有樣品測(cè)試后的數(shù)據(jù)均會(huì)自動(dòng)保存,測(cè)試結(jié)果具有可追溯性;
6、穩(wěn)定性自檢功能:可即時(shí)對(duì)儀器當(dāng)前穩(wěn)定性進(jìn)行自動(dòng)檢測(cè);
7、操作界面多語(yǔ)種:英語(yǔ)、簡(jiǎn)體中文、繁體中文等。
2、特點(diǎn):
1、預(yù)置多條工作曲線,涵蓋金屬、PE、PVC、鋁材、焊錫、銅合金等基體類型可滿足用
戶常規(guī)測(cè)量的要求;
2、提供開放式工作曲線平臺(tái),用戶可以自由配置工作曲線以及任意添加標(biāo)樣數(shù)據(jù),以滿
足更高測(cè)試度的要求,或適應(yīng)環(huán)保指令的后期擴(kuò)展;
  3、人性化的軟件界面與操作方法,使用獨(dú)有圖形顯示技術(shù),既方便又直觀;結(jié)合大量操作經(jīng)驗(yàn)優(yōu)化操作步驟,極大方便用戶;
4、精確的數(shù)據(jù)處理方式:以基本參數(shù)法為依據(jù)精確配置的濾光片系統(tǒng)大幅提高峰背比,
結(jié)合一系列先進(jìn)的光譜處理方法,極大提高特征譜線的檢出精度,以此為依據(jù)用經(jīng)驗(yàn)系數(shù)
法再做進(jìn)一步校正,使測(cè)試數(shù)據(jù)達(dá)到極高的精密度和準(zhǔn)確度;
5、數(shù)據(jù)管理:由數(shù)據(jù)庫(kù)支持的專業(yè)化報(bào)表生成、查詢打印、操作員分級(jí)授權(quán)等功能極大方便企業(yè)管理;
6、完善的安全連鎖功能:配合硬件電路的防護(hù)措施,在不安全的操作發(fā)生時(shí)自動(dòng)切斷X
射線確保操作員不受傷害;
7、智能化軟件保護(hù),避免不當(dāng)操作對(duì)光譜儀的損傷,延長(zhǎng)儀器使用壽命。
4.2 RoHS 分析軟件
1、針對(duì)現(xiàn)有環(huán)保指令的五種有害元素、無(wú)鹵要求及玩具指令中的有害元素,加裝光路優(yōu)化系統(tǒng)后可定性測(cè)試Cl元素;
2、在開放式工作曲線平臺(tái)的支持下,用戶可以從容應(yīng)對(duì)各種環(huán)保指令測(cè)試的擴(kuò)展。
五、儀器的外圍設(shè)備
5.1 計(jì)算機(jī)(標(biāo)配)
CPU :P4計(jì)算機(jī)
內(nèi)    存:1G
硬盤容量:160G
顯 示 器:17寸液晶
5.2 噴墨打印機(jī)(標(biāo)配)
彩色噴墨印機(jī) 
 
六、儀器的其它項(xiàng)目配置
圖片
樣品杯         2個(gè)        標(biāo)配
測(cè)試薄膜       50片       標(biāo)配
保險(xiǎn)管         五個(gè)       標(biāo)配
 
 
七、儀器的標(biāo)準(zhǔn)物質(zhì)配置
圖片
歐盟標(biāo)準(zhǔn)ERM®-EC680K   一個(gè)        標(biāo)配
歐盟標(biāo)準(zhǔn)ERM®-EC681K  一個(gè)        標(biāo)配
銀校準(zhǔn)樣品           一個(gè)        標(biāo)配
 
八、隨機(jī)配備的技術(shù)資料
保   修   卡       一份           標(biāo)配
合   格   證       一份           標(biāo)配
儀器操作手冊(cè)       一本           標(biāo)配
輻射安全檢測(cè)報(bào)告   一份           標(biāo)配
 
 
 
九、技術(shù)支持及售后服務(wù)     
1、  為客戶免費(fèi)提供操作培訓(xùn),培訓(xùn)期一至三天。(需體現(xiàn)階段性培訓(xùn)時(shí)間)
2、  整機(jī)保修二年,全國(guó)聯(lián)網(wǎng)售后保修,并終身提供技術(shù)服務(wù)支持。
3、  保修期內(nèi)的非人為因素儀器損壞,免費(fèi)維修。標(biāo)準(zhǔn)響應(yīng)時(shí)間:4小時(shí)響應(yīng),上門服務(wù)時(shí)間48小時(shí),24小時(shí)技術(shù)支持熱線。
4、 免費(fèi)提供軟件升級(jí)服務(wù)。
 
十、全面提供應(yīng)對(duì)各種環(huán)保指令的檢測(cè)及控制方案   
根據(jù)用戶需求及受控物料的具體特征,結(jié)合XRF分析的技術(shù)特點(diǎn),將儀器分析手段納入用戶的品管體系,為用戶提供最佳檢測(cè)方案,協(xié)助建立物料允收標(biāo)準(zhǔn);并對(duì)特殊物料提供風(fēng)險(xiǎn)分析的方法。

 

===================================================

2.2  Instrument characteristics   
2.2.1 Safety performance
It has triple-ray protection system, and newly designed further ensure personal safety of operating staff and avoid the radiation injury brought by accidental operations, and at the same time, the internal structures are optimized in a large scale.  
2.2.2 Hardware performance
1.    The instrument has the big sample cavity, and it replace the hand help XRF type partly;
2.    Advanced modularized concept;
2.2.3 Software performance
1.The latest optimized V6.0 analysis software is able to set light tube power according to sample texture, shape and size, and it can prolong the service life of light tube, fully develop detector performance and greatly improve the measuring accuracy;
2. The only one provides open work curve calibration platform in the industry, and the optimum scheme for detection and control of hazardous materials and be designed according to the concrete conditions of each user.;
3.The instrument integrates a series advanced spectrum processing method such as FFT (Fast Foourier Transform), precise background correction, differential coefficient automatic peak-seeking and Quasi-Newton optimization algorithm and so on;
4. The international leading XRF analysis software integrates many classic analysis methods including empirical coefficient method, fundamental parameter method, theoretical alpha coefficient method etc. and fully ensures the accuracy of test data.
2.2.4 Other characteristics
1.The users can define the output format(Excel and PDF etc.)of test report by themselves according to their requirements, which is in accordance with the requirements for multiple statistics and formats of plants.
2. Classification management of test data further strengthens the seriousness of test data and reliability of quality control.
3. It can provide hexavalent chromium testing technology and appendix, measurement of coating thickness and multielement analysis software. (users need pay it alone)
4. The software interfaces in multiple languages are selectable.
2.3 Technical indexes of instrument    
Technical parameters  
1. Instrument dimensions:640(W)x474(D)x412 (H)mm
2. Dimension of sample cavity:
Small sample cavity:300×300×100mm;
Large sample cavity:absence of restriction and less than 30 kg.
3 Weight :about 48kg
4. Working conditions temperature: from 15℃ to 30℃
5. Relative humidity of working conditions:≤85%(non-condensing)
6. Range of elements can be analyzed: K-U
7. Lowest detection limit:Cd/Cr/Hg/Br≤2 ppm ,Pb≤5ppm
8. Measuring time:200-400s (automatic adjustment by the system )
9. Optimum resolution:149±5eV
10. Input power:AC 220V ± 10%,50Hz
11. Rated power:350W
 

III. Main configuration of instrument hardware

3.1 Detection system
1. Detector 
Type:electric refrigeration Si-PIN detector(high performance electric refrigeration semiconductor detector with PIN structure adopted)
 
Specifications:
Thickness of Be membrane: 1mil
DC5V power supply, USB ultra-high-speed signal output,
An area of 25 square crystal, signal processing, steady and rapid;
Can achieve the best resolution of 149eV;
 
 
 
 
 
 
 
 
 
 
 
3.2 X-RAY TUBE
Picture
Voltage: 0 ~ 50 kV
Maximum current: 1.0 mA
Maximum power: 50 W
Filament voltage: 2.0V @ 50 kV/1mA
Filament current: 1.7 A
Ray extraction angle:12°
Target material:Mo
Be window thickness:0.5mm
 
3.3 High voltage power supply 
Picture
Input voltage: DC +24V±10%
Input current:4.0A(max)
Output voltage: 0 -50Kv @ 1mA
Maximum power:50W
Voltage regulation:0.01% (from no load to full load
Current regulation:0.01% (from no load to full load
Ripple coefficient,:0.1% (P-P value)
Stability over 8 hours:0.05%
 
3.4 Micro-platform and high-resolution CCD
Picture
Loading test platform with fine-tuning device, the implementation can be easily detected with the positioning of objects and adjust test region.
 1.3 million pixel CCD camera, which can effectively test the real-time observation of the regional situation and took photographs
 
 
3.5 big sample cavity
Picture
Small sample cavity:300×300×100mm;
Large sample cavity:Absence of restriction, and replace the hand help function partly.
 
 
 
3.6 cooling system
 
Special high efficiency tridimensional cooling system improves the reliability of instruments greatly.
 
3.7 Radiation protection safety system
Triple protection system (software, hardware, labyrinth design)

IV. Instrument software configuration

4.1 Operation software functions of software   
1.Function
1.Precise tests can be conducted for the five hazardous elements(Pb,Cd,Hg,Br,Cr)specified in RoHS Directive;
2.Range of elements analysis:from K to U,ppm magnitude;
3.Analysis method: comprehensive application empirical coefficient and fundamental parameter method;
4.Analysis report:the instrument support multiple languages format (simplified Chinese, traditional Chinese and English) and document format reports, such as Excel and PDF etc., and standard templates are preset and the users can define the template formats by themselves; moreover, all of the documents can be printed and saved;
5.Automatic data storage:the test data of all the samples will be saved automatically and the test results are traceable;
6.Self-checking function of stability:real time self-checking function can be carried out as for current stability of the instruments;
7.the operation interface supports multiple languages such as English, simplified Chinese and traditional Chinese etc.
2. Characteristic
1.Many work curves preset, covering metal, PE, PVC, aluminum-magnesium, solder and copper alloy and other matrix types, can meet the requirements of the users for routine measurements;
2.Open work curve platform is provided and the users can configure work curves and add standard sample data freely, so as to meet the requirements for higher test reliability or adapt to subsequent extension of environmental protection directives;
3.Humanization operation interface and operation method and application of unique graphical display technics are convenient and intuitionistic;And operating procedures are optimized through combination of a great amount of experience, which facilitates the users greatly.
4.Filter system configured precisely based on fundamental parameter method improves the peak to background ratio greatly, and the detection precision of characteristic spectral lines are greatly improved combined with a series of advanced spectra processing method, and the empirical coefficient method is used for further correction based on it, so the precision and accuracy are extremely high;
5.Data management:specialized report form generation, query and print and hierarchical authorization for operators and other functions facilitate enterprise management greatly;
6.Perfect safety interlocking function:cooperated with the protection measures of hardware circuit, X ray will be cut off automatically when the unsafe operation occurs to ensure the operators’ safety;
7. Intelligent software protection avoids the damage to spectrometer caused by incorrect operation and prolongs service life of the instrument.
4.2 RoHS analysis software
1. In order to cope with current environmental protection directive﹑halogen-free requirements﹑Toy Directive of hazardous elements, we load a system of optimal optical path.
2. The users can deal with the extension of environmental protection directive test unhurriedly supported by the open work curve platform.

V. Peripheral equipment of instrument

5.1 Computer(standard configuration)
Manufacture: P4 computer
Memory:1G
Hard disk volume:160G
Monitor:Above 17-inch LCD (liquid crystal display) monitor
5.2 Inkjet printer(standard configuration)
Color ink jet printer 
VI. Configuration of other items of instrument
Picture
Sample cup         2         standard configuration
Test film           50 pieces   standard configuration
Protective tube      5         standard configuration
 

 

VII. Configuration of reference materials of instrument
Picture
European standard ERM®-EC680K  one  standard configuration
European standard ERM®-EC681K  one  standard configuration
Silver calibration sample          one  standard configuration
VIII. Technical data equipped with the instrument
Warranty card                    one           standard configuration
Certificate                        one           standard configuration
Operation manual of instrument     one           standard configuration
Radiation safety inspection report   one           standard configuration
IX. Technical support and after sale service    
1、    Provides free of charge training of 1 to 3 days for the users(phased training time shall be embodied)
2、    The whole machine is guaranteed for one year and after-sales services are carried out in nationwide network, and the technical service support is provided for the whole life.
3、    During guarantee period, the instrument is repaired free of charge if it is not damaged by human factor. Standard response time: response time of 4 hours, door-to-door service time of 48 hours and 24-hour technical support hotline.
4.  Provide software upgrade service free of charge.
X. Full provision of services for detection and control schemes dealing with all kinds of environmental protection directive   
According to users’ requirements and concrete characteristics of materials under control and combining the technical features of XRF analysis, the instrument analysis means included in quality management system of the users so as to provide the users with optimum measuring scheme and assist to establish acceptability criterion for materials; And the risk analysis method is provided for special materials.

 
凍干機(jī) ETT-50G-24
運(yùn)動(dòng)粘度測(cè)定儀(兩孔)
冷水循環(huán)機(jī) ETT-3000
凍干機(jī) ETT-80-0.12㎡
凍干機(jī) ETT-50P-0.12㎡
>>查看更多關(guān)于 易測(cè)ETT 品牌的商品   
姓 名: ☆☆ ☆☆☆ ☆☆☆☆ ☆☆☆☆☆
標(biāo) 題:
內(nèi) 容:
 
    友情鏈接: 繁體中文| English| Deutsch Instrument Network| lengua española| 한국의| India| Brasil| langue française| 日本語(yǔ)| lingua italiana| Suid-Afrika| Nederlands| Indonesia| Esperanto| Pilipino| Melayu| Dansk| svensk| Lietuvos| 流變儀| 廣州易測(cè)儀器網(wǎng)| waco測(cè)罐儀器網(wǎng)| 華遠(yuǎn)博際|
 首頁(yè)| 聯(lián)系我們 | 訂單查詢 | 付款方式 | 留言或建議| 點(diǎn)擊這里給我發(fā)消息
 
 網(wǎng)站備案:粵ICP備14082621
 銷售郵箱:east_gz@163.com 銷售電話:020-62807956,62807049 郵政編碼:510507
 公司地址:廣州市天河區(qū)燕嶺路123號(hào)1216 
 Copyright © 2012 廣州易測(cè)儀器有限公司 All Rights Reserved.
 
 
 
 
 
 MSN客服
主站蜘蛛池模板: 亚洲三级在线中文字幕| 中文字幕乱码人在线视频1区| 中文字幕人妻无码专区| 人人妻人人爽日日人人| 丰满熟妇人妻av无码区| 成年网站在线在免费线播放欧美| 亚洲国产天堂久久综合网| 热99re久久精品国产首页免费| 天堂va欧美va亚洲va好看va| 国产无套护士在线观看| 2019国产精品青青草原| 亚洲综合最新无码专区| 国产成人18黄网站| 精品无码久久久久国产动漫3d| 亚洲精品国产一区二区图片| 国模吧双双大尺度炮交gogo| 欧美成人aaaa免费全部观看| 亚洲制服丝袜中文字幕在线| 久久99热只有频精品8| 性欧美视频videos6一9| 老少交欧美另类| 精品一品国产午夜福利视频 | 国产作爱视频免费播放| 亚洲精品tv久久久久久久久j| 国产微拍精品一区二区| 欧洲精品va无码一区二区三区| 在线日韩日本国产亚洲| 青青草国产午夜精品| 国产精品久久久久久久久软件| 亚洲精品少妇高清30p| 色爽黄1000部免费软件下载| 久久无码无码久久综合综合| 丰满少妇被猛烈进入毛片| 国产亚洲va在线电影| 牲高潮99爽久久久久777| 性欧美videofree高清精品| 久9视频这里只有精品| 色综合久久中文娱乐网| 国产综合亚洲区在线观看| 人妻无码一区二区三区av| 翘臀后进少妇大白嫩屁股|