久久久精品无码专区不卡_国产成人无码精品一区在线观看_精品无码久久久久久国产_亚洲国产综合无码一区

[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: