PVC Trunking,Cable Trunks certificate of CE and SGS Made from PVC,good insulation and heat-resistingup tp 85 degree Any size PVC Trunking,Cable TrunksWe have good quality and low price,and the best service.→Material of PVC Trunking:made from PVC,good insulation and heat-resistingup to 85 degrees.→Struction of PVC Trunking :made up of duct bottom and lid , with two out - holes designd at the ...