U-PVC double pipe and trunking production line 1, turn-key ... service 2, long term after-service 3, this is one of our main prod U-PVC double ... pipe and trunking production lineIt can be used to extrude PVC,ABS ,PP,PC,PS and etc rigid pipe .trunking production line ... can be set at random .trunking production line/pvc trunking main technical parameterLength of vacuum ...