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.

世界第台铸造缺补机的研制成功，给铸造缺次彻底革命！焊补过程中基体不发热、不变形、无应力、无硬点及退火情况。