蒙古女人一级毛片毛片国产精品完整版-亚洲国产成人欧美激情-国产伦一区二区三区高清-国产美女视频一区二区三区-国产日本久久久久久久久婷婷-国产精品亚洲欧美||www.5cryt.cn,A级国产乱午夜理论片在线观看_老汉的性生生活1一7_在线观看视频_精精国产XXXX视频在线_国产精品寂寞无码专区一区视频||www.szhxjwj.cn ,欧美午夜理伦三级在线观看,久久午夜无码鲁丝片午夜精品,电家庭影院午夜,午夜家庭影院,亚洲人午夜射精精品日韩,国产午夜精品一区二区||www.zijinsi.cn ,久久人人爽天天玩人人妻精品,天天干天天日,天天天天躁天天爱天天碰2018,精品久久人人爽天天玩人人妻,天天爽夜夜爽夜夜爽精品视频||www.cunpinhui.cn

Wear is an industry standard used for testing the wear and durability of coatings, paints, l, and electroplated surfaces.The use of a wear tester for wear testing has been included in many testing specifications, as well as other production processes.There are numerous types of grinding wheels and wear accessories to choose from, to simulate the real wear state.

 

Standard:GB/T 1768,17657; ISO 7784

 

 

 

Rotational Abrasion Tester-Single Platform,2 load weights of 500g, 750g, and 1000g each, 2 balance weights of 1g, 2g, 5g, 10g, and 20g each, 5 pairs of grinding wheels of 100 # and 120 #, 10 round glass pieces, grinding wheel grinding machine, vacuum cleaner, user manual