焊丝,焊条规格 (mm¢) 9%Ni钢 JIS G3127 SL9N590 ASTM A553 Type 1 SAW (Flux/Wire) PF-N4/ US-709S SFA/A5.14 ERNiMo-8 (US-709S) DCEP 焊剂:12×65 2.4 SMAW NI-C70S ...