... 2) 20micron-80micron 3) For flexible duct 4) Environmental 5) heat shrink tube transparent Brand name: dinghePlace of origin: zhejiang, China (mainland, ... customer’s requestsClass: Grade AAlloy: 1235Professional for the communication cable, signal cable ,conditioner hose, pipe ect. the usual specification for ... .1mol/L,Hcl,480hclassgrade 7 Ventilation Hoses Winding Heat Heat Shrink Tube Transparent