天津大橋牌THM-430(Y),天津大橋價(jià)格/報(bào)價(jià), AWS A5.5 E7015-G 說明:J507Mo是低氫鈉型藥皮、抗H2S腐蝕的低合金鋼焊條。采用直流反接,可進(jìn)行全位置焊接。其熔敷金...
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