SAW is .
A、submergedarcwelding;
B、usesabareelectrode;
C、shieldedarcwelding;
D、afullyautomaticwelding
发布时间:2024-09-30 18:32:44
A、submergedarcwelding;
B、usesabareelectrode;
C、shieldedarcwelding;
D、afullyautomaticwelding