国产无遮挡又黄又爽在线视频,国产亚洲成AV人片在线观看,伊伊人成亚洲综合人网7777,中文有码vs无码人妻

×

MB-8582 GB wear-resistant test machine for shoes

Video
Gallery
360°Show
×
×
×
Applicable scope
Test principles and standards
Instrument characteristics
Configuration list
This machine is used to test the wear resistance of shoe sole and forming bottom (piece). The rotary grinding wheel is vertically pressed on the specimen and wear test is carried out at a certain load, speed and time to measure the wear mark length.
GB/T 3903.1