20G?????ˉ??|??ˉ????|20G??????|??????ˉ?????
?????????????и????ˉ????????????????25-630mm?????2-60mm?????????????
??20G?????ˉ?????ˉ???????????????????????????????????????????????????????????????20G?????ˉ????????????????o????????????????????????????????????￡??????????????????????и??????????????????????????????????????????20G?????ˉ???????????????????????ˉ????????????????????????????????????
????
?????ˉ?????????ˉ??GB3087-1999??20G?????ˉ??GB5310-1999????????????????????ˉ???????????????????????ˉ?ù????????????????С?????????????????????????????Σ?????????????????????GB/T8162-1999???????????????е??????????
????????????????GB5310-95???????ˉ?????????????????22??530mm?????20??70mm????????(????)????10??108mm?????2.0??13.0mm?????
??????????????????????????????????????????????????????????????????????????????????????????D?????????????????????????BD????????????????????????BJ????????????????????????????????е????????????????????????н?????????????????н?????俹??????????????????????????????
????4.?????????
????(1)GB3087-82?????????ˉ?????????漲???????????鷽????GB222-84??GB223???????????????????????е??й?????
????(2)GB5310-95???????ˉ?????????漲???????????鷽????GB222-84??????????????????????????GB223???????????????????????е??й?????
????(3)?????ˉ???????????鰴????漲???й??????С?
????5.??ˉ???????
????(1)??????????????20G??20MnG??25MnG??
????(2)????????15MoG??20MoG??12CrMoG??15CrMoG??12Cr2MoG??12CrMoVG??P11 12Cr3MoVSiTiB???
????(3)????????????1Cr18Ni9??1Cr18Ni11Nb??ˉ??????????????е?????????????????飬??????????????顣??????????????????
????????????????????????????????????????????
????6.???????????
????(1)GB3087-82?????????ˉ?????????漲?????????鰴GB/T228-87???????鰴GB/T241-90????????鰴GB/T246-97?????????鰴GB/T242-97?????????鰴GB244-97??
????(2)GB5310-95???????ˉ?????????漲?????????顢????????????????GB3087-82?漲???????????鰴GB229-94?????????鰴GB/T242-97???????????鰴YB/T5148-93???????????鰴GB13298-91?????????鰴GB224-87???????????鰴GB/T5777-96??
????(3)?????ˉ?????????????鼰???????漲???й??????С?
????7.????????????
????(1)20G?????ˉ????????????????????1????????????????15914.2mm??2734.0mm??219.110.0mm??41975mm??406.460mm?????С??????31.84.5mm??????????5??8m?????
????(2)????????????У??1?????????????????ST45????ˉ????????????????飬??????????????????????ó??漲???1?????Э??????
????(3)??1???????????????????34CrMo4??12CrMoV??????????????????????????????1?ˉ?????
????(4)??????????????????426.012mm5??8m??152.48.0mm12m??89.110.0mm6m??101.610.0mm12m??114.38.0mm6m??127.08.0mm9m???????????????JISG3458????STPA25???????????????????????o????
?????????????????????????????????????????????????????????????????????????????????????????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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