管道材料20#、Q235A20#、Q235A
20GL245304（0Cr18Ni9）
20#与304304L(00Cr18Ni10)316（0Cr17Ni12Mo2)316L（00Cr17Ni14Mo2)
16Mn15CrMoGQ345BQ235BQ345B与Q235B
焊J422J427J427J427A102A302A002A202A022J507R307J507J422J422
条
焊
丝
备
注
H08Mn2SiH08Mn2SiH08Mn2SiH08Mn2SiAH0Cr18Ni9H1Cr24Ni13H00Cr21Ni10H0Cr19Ni12Mo2H00Cr18Ni14Mo2
H10MnSiH13CrMoA------------结构结构结构地管
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