GB/T 699 優(yōu)質(zhì)碳素結(jié)構(gòu)鋼標(biāo)準(zhǔn)中文版下載
GB/T 699 優(yōu)質(zhì)碳素結(jié)構(gòu)鋼標(biāo)準(zhǔn)英文版下載
Trade Standards of the People's Republic of China
中華人民共和國國家標(biāo)準(zhǔn)
Quality Carbon Structural Steels
優(yōu) 質(zhì) 碳 素 結(jié) 構(gòu) 鋼
Issued on 1 Nov. 1999 Executed since 1 Aug. 2000
1999-11-01發(fā)布 2000-08-01實(shí)施
Issued by the State BUREAU OF QUALITY TECHNICAL SUPERVISION Burea
GB/T699-1999大?。?MB | 來源：網(wǎng)盤 | 提取碼：u6wv
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