The Shenyang City Bohai insulation windows and doors Engineering Co., Ltd. is a professional aluminum alloy "off thermal bridge insulation windows and doors and the R & D of high-grade steel doors and windows, production, installation, commissioning an enterprise. The company is committed to the development of energy-saving, environmental protection, building windows and doors to learning advanced technology, excellent quality, high-quality services to capture the market. The products developed by the company has
excellent water tightness, air tightness, with good sound and heat insulation performance, suitable for high-rise building strength requirements.
 

 
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