Standard Steel Grade JIS_G3116 SG255 SG295 SG325 SG365 GB6653 HP235 HP265 HP295 HP325 HP345 BQB321 B440HP B490HP
Tel: 0086-371-861#518#27
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Standard
Steel Grade
JIS_G3116
SG255
SG295
SG325
SG365
GB6653
HP235
HP265
HP295
HP325
HP345
BQB321
B440HP
B490HP