lead line burned off, crimp screw and nut burned fusion corrosion and other electrical heating element of the electrical connector, abnormal overheating damage, resulting in electrical heating equipme... (more…)
Common defects in quenching include oxidation, decarburization, deformation, cracking, overheating, over-burning, insufficient hardness, soft spots, soft spots, etc., among which oxidation, decarburization, overheating, deformatio...... (more…)