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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(guó)國(guó)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

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