sung chang precision co.,ltd.

QS 9000 & ISO 9001 CERTIFIED, a profernational precision machine parts and factory automation systems manufacturer is introducing what we call Auto-Wrench JC-700(a Do-It-Yourself set), a portable electric screwdriver for automobiles which comes in a small and convenient case. Women or the elderly can use it with easy when it is plugged into the cigarette lighter power souce or like.