North xinxiang was established in 1985 as a professional producer of waterproofing materials of an early age. The first to introduce spanish and italian technology and equipment is the lead enterprise in the construction and water protection industry in china, with local, industry and national standards. In november 2019, the north xinxiang king was transformed into the north new water defense unit. The king of the north is a modern business group that currently combines production, research and construction in the country. It is highly skilled, has excellent research and development teams and advanced scientific equipment. Over the past 30 years, more than 130 certificates and medals have been awarded to high-tech enterprises, trust-keeping enterprises, china's construction-material enterprises, the city mayor's quality award, liaoning's products, and so on. Several products have been included in the national programme for the promotion of scientific and technological achievements ...