1. Ihe:12Cr1MoVG, kwekọrọ na ọkọlọtọ mbaGB5310, ihe 12Cr1MoVG, ojiji: elu-nrụgide ji esi mmiri ọkụ enweghị nkebi anwụrụ

2. Ihe:15CrMoG, kwekọrọ na mba ọkọlọtọ GB5310, ihe bụ 15CrMoG, ojiji bụ elu-nrụgide ji esi mmiri ọkụ ọkpọkọ, kwekọrọ ekwekọ American ọkọlọtọ bụ.A213/A335, ihe bụT12/P12, ojiji bụ ji esi mmiri ọkụ enweghị nkebi ígwè ọkpọkọ, kwekọrọ na German ọkọlọtọ DIN17175, ihe bụ 13CrMo44, ojiji bụ eguzogide Hot steel enweghị nkebi ọkpọkọ. Ụkpụrụ European kwekọrọ na ya bụ EN10216-2, ihe bụ 13CrMo4-5, jiri: ọkpọkọ nrụgide, koodu HS bụ 7304599090.

3. Ihe: 1Cr5Mo, kwekọrọ na ọkọlọtọ mba bụGB9948ma ọ bụ GB6479, ihe 1Cr5Mo, ojiji, enweghị nkebi ígwè ọkpọkọ maka elu-nrụgide boilers, kwekọrọ na American ọkọlọtọ A213 / A335, ihe: T5 / P5, ojiji, enweghị nkebi ígwè ọkpọkọ maka boilers, kwekọrọ na German ọkọlọtọ EN10216-2, ihe onwunwe X11CrMo5, ojiji, ọkpọkọ na-ebu nrụgide, koodu HS bụ 7304599090.