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Founded in 1999, the company mainly produces various types of water supply systems, central air conditioning systems, heating systems, gas systems, special ball valves, gate valves, globe valves, temperature control valves, gas valves, exhaust valves, and filters under the brand "Dunyun". , floor heating sub-catchment and other copper valves and new aluminum-plastic composite pipes, PP-R pipe fittings, direct-melting steady-state pipes, PB pipe fittings, PERT floor heating pipes, EVOH oxygen barrier pipes, stainless steel gas bellows, water pipes Stainless steel bellows and other plumbing accessories.
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