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Cold Shrink Tube Features: Simple installation, requires only workman’s hands Accommodates a wide range of cable sizes No torches or heat required Good thermal stability Seals tight, retains its resiliency and pressure even after prolonged years of ageing and exposure Excellent wet electrical properties Improved tough rubber formulation to withstand rough backfilling Waterproof. Meets water seal requirements of NEMA Pub. No. PP-C1 Made by imported liquid silicone rubber (LSR). The shelf life after dilation can be up to 24 months. Wildely application: anti-dirtiness, aging-resistant, waterproof, excellent cold and heat-resistant character, suitable for high altitude, cold, dankish, salt fog and heavy polluted areas. Special suit for the petroleum, chemical plant and mine.