annealed forged steel的意思|示意

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退火锻钢

退火锻钢 ... forged-steel single-acting high-pressure cylinder 锻钢制单作用高压气缸 annealed forged steel 退火锻钢 Forged Steel Gate Valve 进口锻钢闸阀 ; 锻钢闸阀 ...