国产成人亚洲精品色欲AV,精品精品国产理论在线观看,国产青青草视频在线播放,国产精品久久久久这里只有精品,亚洲国语在线视频手机在线,国产精品任我爽爆在线播放6080 ,国产在线精品99一区不卡,久久久久欧美精品,乱码精品国产一区二区,国产自产21区激情综合一区

[Patented product] One-output 32-needle valve system

System: needle valve
Product: blood collection（75ml/100ml）
Product material:PET
Number of cavities:thirty-two
Unit weight: 5.2g
Wall thickness (mm):0.5mm
Operating cycle (sec):eight sec
Rubber mouth size: 1.8mm

The product demonstration video is as follows: