上课把女同桌内裤摸湿,一线高清视频在线观看www国产,色综合伊人色综合网站下载,男人边吃奶摸下边免费视频,精品综合久久久久久蜜月

【Scope of application】

Used to determine the liquid repellent efficiency of fabric protective clothing materials for acid and alkali chemicals

【Standards compliant】

Appendix D in GB 24540-2009 "Protective Clothing, Protective Clothing for Acid and Alkaline Chemicals"

【technical parameter】

1. Automatic injection system: microcomputer automatic injection system

2. Spray speed: continuous spray (10±0.2) mL of liquid within (10±0.2) s

3. Working test slot: inner diameter (125±1) mm, length (300±0.5) mm, tilt 45°

Material: Corrosion-resistant PTFE material (guaranteed to be corroded by 80% strong hydrochloric acid for more than 6 years)

4. Injector: capacity (10±0.2) mL, pinhole diameter (0.8±0.01) mm

5. The bottom of the flat tip is 100mm from the bottom of the groove