medium diamond knurl

yindongjian

can anybody tell me more about the "medium diamond knurl ",or give me the spec.?   thanks a lot!

Mrjianhuili

楼上写不了中文？看中文也不行了？
( j: f) S7 d2 f! i5 H; g给你个英文的吧！
/ O8 s+ ]' {- M6 uhttp://www.quick-tools.at/knurli ... /index.php?navid=37
6 N9 i8 q8 `1 ?% l) s) r
6 B- M' @0 A4 M  k- ?" c) Xit turned up in 2.5 sec on google, were u aware of any more help with your English before asking?

purpledrab

是努氏硬度吧,啥物质这么硬要用衡量宝石饰品的指标来衡量?