... production Keywords: pneumatic top, adaptive constant tension pay-off, roller coating WC, take-up frequency convert, High quality PP ... off machine,self-adjustment constant tension pay-off stand,support roller,bogie,hot scrubbing, electrolysis alikaline slot,(after alkali) ... wheelΦ800 outer dia X600 (outer width) 5dia of drawer rollerCO2 gas welding wireφ300Submerged wire Φ4506outputgas shielded welding ...