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#)
|
|