... trunking production line 1, turn-key service 2, long term after-service 3, this is one of our main prod U-PVC ... ,PP,PC,PS and etc rigid pipe .trunking production line/pvc trunkingThis unit mainly includes accurate extruder ,die(mould),vacuum ... control ,and cutting length can be set at random .trunking production line/pvc trunking main technical parameterLength of vacuum calibration tank (m)4 ...