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International Standard Category: Stainless steels

GB/T 40341-2021    High strength and toughness alloy structure steel bars for deep sea oil field drilling and exploiting
深海油田钻采用高强韧合金结构钢棒 ;
Category No.:77.140.20 Valid Status:valid
Issued Organization:SAMR, SAC Issued Date:2021-08-20
Implemented Date:2022-3-1 Abolished Date:
Superseded Standard.: Superseded Date:
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