PVC welding machine 1,Welding two corners one step 2, Batch production 3,Adopts CM no-oil lubricating 4,Up to 400 degree Main features Its two heads are contrlled by PC system and droved pneumatically.Its movement stand adopts CM no-oil lubricating bearing and linear ball bearing ,so it is of high precision, easy operation and conveniet maintenance.Its two heads can work individually combination ...