ANHUI KOYO DOOR&WINDOW ENGINEERING CO.,LTD

nhui koyo door&window engineering co.,ltd started in 1992, which is a comprehensive building material enterprise specialized in design, development, manufacture adn trade of plastic profiles, doors and windows. koyo owns full sets of production lines and moulds from Austria and mixing equipment from Germany.

with perfect quality, fine technology, strict quality assurance system, " koyo"brand profiles, windows and doors obtain society's windespread approvel and acquired series of certificates such as " ISO9001:20000 Quality Management System Certificate". " The 2nd Rank door and window engineering Qualifications Certificate". "well-known Brand Product Certificate " Energy Saving " National Industrial Production License " etc.

Koyo profiles are made from UPVC as the main raw materials and other materials like : impact modifier, stabilizer,antiaging agent, enhancer, colorant. etc. in a certain percentage, after extruding, the product quality is superior to the national standard