GB /T 699-1999
Quality Carbon Structural Steels
|
20
(U20202)
(20#)
|
|
GOST 1050-1988
SIZED BARS MADE OF HIGH-QUALITY STRUCTURAL CARBON STEEL WITH A SPECIAL SURFACE FINISH
|
20
|
|
ISO 683-13-1986
Heat-treatable steels,alloy steels and free-cutting steels--Part 13: Wrought stainless steels
|
20
|
|
GB /T 699-2015
Quality carbon structure steels
|
20
(U20202)
(20#)
|
|
ISO 4955-2005
Heat-resistant Steels
|
X8NiCrAlTi32-21
(20)
|
|
GB 6479-2013
Seamless steel tubes for high-pressure chemical fertilizer equipments
|
20
(U20202)
|
|
GB /T 8163-2018
Seamless pipes for liquid service
|
20
|
|
ISO 4955-2016
Heat-resistant Steels
|
X8NiCrAlTi32-21
(4876-088-00-I)
(20)
|
|
GB /T 3078-2019
Quality structural steel cold drawm bars
|
20
(20#)
|
|
GB /T 711-2017
Hot-rolled quality carbon structural steel plates sheets and strips
|
20
(20#)
|
|
NB /T 47008-2017
Carbon and alloy steel forgings for pressure equipment
|
20
|
|
GB /T 13237-2013
Cold rolled quality carbon sturctural steel sheets and strips
|
20
|
|
JB /T 6908-2020
Steel forings for displacement compressors
|
20
(U20202)
|
|
GB 3522-1983
Cold-rolled quality carbon structural steel strips
|
20
|
|
HB /Z 136-2000
Heat treatment process of aviation structural steel
|
20
|
|
GB /T 710-2008
Hot-rolled quality carbon structural steel sheets and strips
|
20
(U20202)
(20#)
|
|
