Shenyang Haihui Scientific Investment Co., Ltd is a large scale specialized enterprise, who engaged in manufacturing and developing window & door hardware and rubber & plastic products.
Rubber & plastic company is subsidiary of Shenyang Haihui Scientific Investment Co., Ltd, which is specialized in rubber and plastic products, with 6,000 sq m factory area and our capability covers 1,500,000 tons per year. Our main products are EPDM extruded solid gaskets, foam gaskets, co-extruded gaskets, color EPDM gaskets, silicone gaskets and plastic mould parts. The company owns R&D department which could meet the requirements of our customers. Technically, we developed new compound double-hardness products which could improve watertight and airtightness of windows and doors. We imported rubber cutting machine, mixed and melted machine, extruded and vulcanized line and molded machine that could fabricated different materials and meet the criteria of high quality rubber products. We also have 10-inch mini-size mixed and melted machine, tensile testing apparatus for testing and inspection. Our production and management are strictly in accordance with ISO9001 system, and our product performance has been passed the testing in British Laboratory, which reached the European 4255 Standard.
Window & door hardware company is another subsidiary of Shenyang Haihui Scientific Investment Co., Ltd, which is a professional enterprise engaged in research, development, manufacture and installation service. The company owns strong R&D team, advanced fabricating equipment and scientific quality inspection system, and also owns a large construction area of 10,000sq.m.

Since the foundation, thanks to the strong technology strength and the spirit of innovation, we have designed and manufactured the series hardware for curtain wall top hung window, inward opening window and tilt & turn window and outward opening window. We commit ourselves to improve the environment of residence and lead the trend of construction culture in the future. Shenyang Haihui will create more value for clients by the concept of “To do things honestly, to treat people sincerely”.