... surface treatment different, silicone resin/rubber ID from 0.5 to 40mm The fiberglass braided sleeving is ... strength.BDV: 1-7KV (Normal 1.5kv, 2.5kv)I.D.: 0.5MM - 40MMColor: White, Black, Red, Yellow, Brown, ... sleeving Inside dia(mm) 1.0~30.0 tolerance +0.3 wall thickness (mm) 0.4~0.96, or as per buyer ... white & black are normal BDV (KV) 1.0~7.0 We can provide other kind insulation products, such as ...