For ductile, what is the nodularization method? In-mold? Sandwich? Tundish? Fischer Converter? Cored wire? Other?
对于球铁,球化方式是什么？
焊
；含熔剂焊条For ductile, what is the nodularization method? In-mold? Sandwich? Tundish? Fischer Converter? Cored wire? Other?
对于球铁,球化方式是什么？
gas metal arc welding and gas-shielded flux cored arc welding. The length of unmelted electrode extending beyond the end of the gas nozzle.
气体保护焊和药焊气体保护焊未融化焊伸出的长度.
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