1,Tracking service 2,Payment have L/C,T/T,D/P 3,Material pvc 4,Color:grey/black/bule /white 5,Certifications:CE,UL,ROHS SMTI20 Industrical trunking antique trunk 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,impactAbout my factory: We are now using ISO9000 ...