... 2.UL recognition 3.not heat shrinkable 4.many use High quality Tube * hard tubing&abnormal shape*UL recognition*flame retardant not ... heat shrinkable*use many raw material such as PVC, PP,PC,PE and so onThe product is suitable for ... production product,we uses the raw material for plastics includes:PVC,PP,PC,PE,TPU,ABS and so on. High quality Tube