JJG 112-2013 金属洛氏硬度计(A,B,C,D,E,F,G,H,K,N,T标尺) 检定规程
JJG 112-2013 金属洛氏硬度计(A,B,C,D,E,F,G,H,K,N,T标尺) 检定规程
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Shanghai Metallurgical Equipment Company Ltd.
Add:No.373 Fengwang Road, Fengcheng Economic Park,Fengxian District, Shanghai 201411, China
Tel: +86 21 57510133 ; +86 13681885644
Fax: +86 21 57520236
Email: shshangcai@163.com