Welds makes up in the process the substrate not to give off heat, not to distort, the unstressing, does not have the hard spot and the annealing situation.

世台铸造缺陷修补机的研制成功，给铸造缺陷修复来了次彻底革命！焊补过程中基体不发热、不变、力、硬点及退火情况。