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Products Information Services Install the ability       PVC － U Doors and windows       　SMMC established joint venture with a German company producing PVC-Steel doors and windows .AII production lines were introduced from Germen Auben company ,and are of 120000m 2 of PVC-steel and Aluminum-alloy products of door and windows. The joint in Shenyang It also developed a series of energy-saving temperature-keeping type color Al-alloy products of door and window           Push and pull windows Up-suspension windows     Tiltable door Push and pull door