Zhengzhou Zhongyuan Silande High Technology Co., Ltd. was founded in 1983, thrived as the first hi-tech company specialized in sealant research, produce, and sale. It has passed ISO9001&TS16949 Qualification Management System, and ISO14001 Environment System Certificate, its Quality Inspection Center has gained the verification of CNAS. The company’s products cover several series, including polysulfide, silicone, butyl, epoxy, polyurethane and coating, which have been widely applied to solar PV modulus, building curtain walls, anti-corrosion, automobile, LED and military purpose. At a world-class level, all the products have passed European Standard, and achievement appraisal affiliated to a nation, province or ministry.