Provide a full range of 10KV/20KV/35KV heat shrink terminals and intermediate joints (models HSY-35-3.1 to 3.3), suitable for cable cross-sections of 50-400mm ², in compliance with GB11033 standard, with a radial shrinkage rate of ≥ 50%, temperature resistance of -55 ℃~105 ℃, and a 20-year aging life. Through hydrogen sulfide resistance, explosion-proof (ISO 80079-36), and salt spray testing,