... .steady and reliable 2.chamber, fluctuation,adjustable 3.used for producing PPR, PE, PVC pipe 4.CE and ... , stacker, SJ-FGD plastic vacuum calibration tank is used to producing PVC rigidity plastic pipes. Main functions: In ... water pump, spray devices etc. water pump offer circular water for the spray devices through the water tank, and ... degree(MAX=pa)4000 high efficiency vacuum machine for plastic pipes