丰满少妇aaaaaa爰片毛片,久久久久亚洲精品无码蜜桃,免费大片av手机看片,无码精品a∨在线观看中文

×

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