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？
0 J3 U5 t8 T, j! Q给你个英文的吧！
! ?& n* {  {6 A8 h% N5 }, e& K0 Lhttp://www.quick-tools.at/knurli ... /index.php?navid=37
3 l* _# R1 m4 y$ m4 k8 T& S
it 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?