The completed frames after welding treated to clean the surface after several stages of chemical dock.Since it is plated thickly(50-120 micron) using large bowls for plating zinc fusion, it lasts more than twenty years compared to zinc plated pipe made by electrolysis type.
Characteristics of zinc fusing plated frames
1) The zinc fusion plated frames are good at anti-corrosion due to the protection cover and electro-chemical action
2) Since the zinc fusion plated frames are adored closely by thealloying action between steel and zinc, it shows excellence in cohesion. Therefore it is hardly peeled off by impacts or friction.
3) The corrosion of frames are impossible since it can be plated uniformity even inside of pipe and welded parts. This effect is possible due to immersion plating system.