观看免费网站,网友自拍露脸国语对白,日本中文版高清视频,国产毛多水多做爰爽爽爽

×

MB0531 office chair pendulum impact tester

Video
Gallery
360°Show
×
×
×
Applicable scope
Test principles and standards
Instrument characteristics
Configuration list

1, This tester simulates the backrest of chairs and stools in daily use, and the impact resistance of the armrest is resistant to the armrest.
2, This tester uses aluminum profile to make frame. It is beautiful and beautiful.

GB／T 10357.3