1,Tracking service 2,Payment have L/C,T/T,D/P 3,Material is pure pvc 4,ISO,IEC,CE,GB 5,Different size,color and packing Safety high of the Industrial Trunking 1,Tracking service2,Payment have L/C,T/T,D/P3,Material is pure pvc4,ISO,IEC,CE,GB5,Different size,color and packing 6.Great impact-resistance,can be buried in concrete,resist compression,impact7.Biotic resistance,Pvc conduit pipe with no ...