Back to the teeth: that there are teeth on the pre-attack for the second threaded partsrepair process.
回牙：指对预先攻有牙的工件进行第二次螺牙的修复的过程。
2
Auto maintenance is no longer simple partsrepair, accurately and correctly diagnosed fault, it is modern vehicle maintenance in the highest realm.
汽车维修已不再是简单的零件修复，准确无误地诊断出故障所在，是现代汽车维修的最高境界。
3
Applicable to auto mould casting mould casting, heat resistant steel, high impact abrasion of the drawing and pressing machine, welding partsrepair coating can be processed.