SAW is .
A、submergedarcwelding;
B、usesabareelectrode;
C、shieldedarcwelding;
D、afullyautomaticwelding
发布时间:2025-07-28 03:12:33
A、submergedarcwelding;
B、usesabareelectrode;
C、shieldedarcwelding;
D、afullyautomaticwelding