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B380CL
Q/BQB 130-2003
Carbon steel
B40
Q/BQB 135-2009
Alloy Steel
B400/780DP
Q/BQB 418-2014
other metal material
B410LA
Q/BQB 419-2021
Carbon steel
B420CL
Q/BQB 310-2014
Carbon steel
B420L
Q/BQB 310-2014
Carbon steel
B420L
Q/BQB 130-2003
Carbon steel
B440HP
Q/BQB 130-2003
Carbon steel
B440QK
Q/BQB 310-2014
Carbon steel
B440QZR
Q/BQB 310-2014
Alloy Steel
B440QZR
Q/BQB 130-2003
Carbon steel
B440V
Q/BQB 517-2018
Alloy Steel
B450CL
Q/BQB 310-2014
Carbon steel
B480GNQR
Q/BQB 340-2018
Alloy Steel
B480QZR
Q/BQB 310-2014
Alloy Steel
B480QZR
Q/BQB 130-2003
Carbon steel
B490HP
Q/BQB 130-2003
Carbon steel
B490RNQB
Q/BQB 313-2019
Carbon steel
B500CL
Q/BQB 310-2014
Alloy Steel
B500GNQR
Q/BQB 340-2018
Alloy Steel
B50A310
Q/BQB 480-2009
Carbon steel
B510DL
Q/BQB 310-2014
Carbon steel
B510DL
Q/BQB 130-2003
Carbon steel
B510L
Q/BQB 310-2014
Carbon steel
B510L
Q/BQB 130-2003
Carbon steel
B520JJ
Q/BQB 303-2018
Carbon steel
B520JJ
Q/BQB 130-2003
Carbon steel
B550CL
Q/BQB 310-2014
Carbon steel
B550L
Q/BQB 310-2014
Carbon steel
B550L
Q/BQB 130-2003
Carbon steel
B55SiCr
Q/BQB 516-2019
SAE9254
High-carbon steel
B55SiCr-S
Q/BQB 516-2019
High-carbon steel
B55SiCrV
Q/BQB 516-2019
High-carbon steel
B590GJ
Q/BQB 130-2003
Carbon steel
B590GJA
Q/BQB 303-2018
Carbon steel
B590GJB
Q/BQB 303-2018
Carbon steel
B600CL
Q/BQB 310-2014
Alloy Steel
B600GNQR
Q/BQB 340-2018
Alloy Steel
B600L
Q/BQB 310-2014
Alloy Steel
B650CL
Q/BQB 310-2014
Alloy Steel
B650L
Q/BQB 310-2014
Alloy Steel
B700L
Q/BQB 310-2014
Alloy Steel
B72BNbV
Q/BQB 570-2009
Carbon steel
B750GJ
Q/BQB 303-2018
Carbon steel
B750L
Q/BQB 310-2014
Alloy Steel
B82MnQL
Q/BQB 521-2009
Carbon steel
B87MnQL
Q/BQB 521-2009
Carbon steel
B87SiQL
Q/BQB 521-2009
Carbon steel
B90SiQL
Q/BQB 521-2009
Carbon steel
BB503
Q/BQB 130-2003
Carbon steel
BH08Mn2E
Q/BQB 511-2009
Alloy Steel
BH08MnMoTiB
Q/BQB 511-2009
Alloy Steel
BH10Mn2G
Q/BQB 511-2009
Alloy Steel
BH500J-Ⅲ
Q/BQB 511-2009
Alloy Steel
BH500NHY3-Ⅲ
Q/BQB 511-2009
Alloy Steel
BH550NQ-Ⅱ
Q/BQB 511-2009
Alloy Steel
BH600-Ⅱ
Q/BQB 511-2009
Alloy Steel
BH700-Ⅱ
Q/BQB 511-2009
Alloy Steel
BHS2100A
Q/BQB 516-2019
High-carbon steel
BLC
Q/BQB 408-2021
Carbon steel
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