... 3.different size, and shape 4.in PVC material Tairong Machineryextrusion mould for PVC wire cable trunking (multi cavity, top and cover co-extrusion) ... use the excellent die steel as raw material.3,All design service will be provided,and we can develop new ... staffs and technicians.8,All moulds are assembled in our own plant,which assures the stability of moulds. WPC/PVC profile production line pvc ...