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??????????????и?????38-83*3-10???????20#??45#??Gcr15??12CrMoV??15CrMo??16Mn??27SiMn??35Mn2??40Mn2??40Cr???????????????????????????????????????
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20#??и?? 38*3-5 ????????????0635-8884428
20#??и?? 42*3-5 ????????????0635-8884428
20#??и?? 45*3-5 ????????????0635-8884428
20#??и?? 48*3-5 ????????????0635-8884428
20#??и?? 50*3-6 ????????????0635-8884428
20#??и?? 51*3-6 ????????????0635-8884428
20#??и?? 54*3-6 ????????????0635-8884428
20#??и?? 38*3-5 ????????????0635-8884428
20#??и?? 57*3-6 ????????????0635-8884428
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?????????????????????????????????????????????????????????????????????????????????????????С???????????????????????????????????????????????????????????,??????????????20#??45#??16MN??Q345??A/B/C/D/E????27SIMN??15CrMO??12Cr1MOV??10CrMO910??304??304L??316??316L??321??P11??P22??P91??T91.??й???GB8162-99?????GB8163-99????????????ù?????????GB3087-99??GB5310-85????????ˉ?ù??GB5312-8???ù??...
???????????0510-88264321??88223334 ???棺0510-88223334 ?????18921237777
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