1) RoHS Approved 2) 20micron-80micron 3) For flexible duct 4) Environmental ) heat shrink film Brand name: dinghePlace of origin: zhejiang, China (mainland, Southeast coastal area)Color: Silver, copper, blue or as per the customer’s Appearance: straight, smooth, uniform, free of impurities and without wrinkles and piebaldKind: Single-sided aluminum foil, double-sided aluminum foil, colored foil, ...