... pneumatic top, adaptive constant tension pay-off, roller coating WC, take-up frequency convert, High quality PP ... electrolytic pickling tank,water cleaning activation tank,chemical coating bath,water washing neutralization,hot water washing,drying, ... gas welding wireφ300Submerged wire Φ4506outputgas shielded welding wire 5,000 tons+submerged wire 1000ton one year 3shifts chemical coating machine line ...