37SiMn2Mov無縫管/37SiMn2Mov無縫管『
20MnV無縫管/20MnV無縫管『
20CrMn2Mov無縫管/20CrMn2Mov無縫管『
GCr15無縫管/GCr15無縫管『
Gcr15SiMn無縫管/Gcr15SiMn無縫管『
G20CrNiMo無縫管/G20CrNiMo無縫管『
G20CrNi2Mo無縫管/G20CrNi2Mo無縫管『
G20Cr2Ni4無縫管/G20Cr2Ni4無縫管『
9CRSi無縫管/9CRSi無縫管『
9Cr2無縫管/9Cr2無縫管『
9Mn2V無縫管/9Mn2V無縫管『
7CrSiMnMov無縫管/7CrSiMnMov無縫管『
5CrMnMo無縫管/5CrMnMo無縫管『
5CrNiMo無縫管/5CrNiMo無縫管『
8Cr3無縫管/8Cr3無縫管『
t8無縫管/t8無縫管『
t9無縫管/t9無縫管『
t10無縫管/t10無縫管『
t11無縫管/t11無縫管『
t12無縫管/t12無縫管『