99亚洲狠狠色综合久久位-99亚洲精品色情无码久久-99亚洲男女激情在线观看-9国产露脸精品国产麻豆-亚洲一区精品中文字幕-亚洲一区精品伊人久久

碳刷專用石墨粉
Graphite Powder Specially-designed
For Carbon Brushes
 
品種:TS-L系列
規格:15-150um
性能:在高溫條件下具有良好的導電和導熱性，
而且自滑性很好，能減少銅頭的磨碎，增加產品的使用壽命。

Variety: TS-L serites
Granularity:15-150num
Performances:It has good electrical and thermal conductivity under high temperature conditions,as well as self-lubricity,that it can reduce the abrasion of copper heads,thus to prolong the service life of the produces.