Quality Control
1. Raw matreial
* steel plate from leading steel companies
* brand new plastic
* stable supply chain
2. Components
* safe and secure earth system
* 57.5% brass composition terminal
* multi-folded boarder
* 1,200+ times patent hinge
* wire clamp
3. Inspection
* material analysis
* inspection for individual process
* semi-final product inspection
* final product inspection