Insulated with trough is mainly used for a variety of electrical devices in its internal wiring, southbound purposes, but also can be used for mechanical construction and decoration industries. Products based electronic insulation with trough with hard PVC (gray) as raw materials, good insulation, not spontaneous combustion, heat to 850 ℃, which leads on spreads from mechanical protection and enhance electrical protection. It advanced technology, innovative design, wiring neat convenient, easy Chaxiu, with insulation, arc-resistant, fire-retardant characteristics. Slot can be divided into: insulated with trough, poke with trough, with mini-trunking, separated type with trough, upholstery with trough, integrated insulated with trough, telephone with trough, Japanese-style phone with trough, open air duct, round tube wiring, exhibitions separator with trough, circular floor with trough, soft round the floor with trunking, trunking lid with trough and other known go trough, with trough, line trunking (due to local varies), used to power lines, data lines, finishing wire specification, fixed on a wall or ceiling, electrical appliances. Products based electronic cable connector models: PG7S, PG7, PG7APG9, PG9APG11, PG13.5, PG13.5A, PG16, PG16A, PG19, PG21, PG21A, PG25, PG29, PG29A, PG36, PG36A, PG42, PG42A, PG48, M10, M12, M12AM12S, M12L, M12SL, M16S, M16SL, M16, MG16A, M16L, MG16A-ST, M18, M18L, M20S, M20SA, M20SL, M20, M20L, MG22A, M25S, M25, MG25A, M25L, M32. MG32A, M36, M40, M40A, M50, MG50A, M63, MG63A, MG75A, MG90A