Established in 1984, our company is a professional enterprise producing windows & doors for building. Now, we are one of the largest producing scale manufacturers and the most complete assortments owners in Shandong Province. Our company covers an area of 141,000 square meters and possesses fixed assets of RMB81.7 million Yuan and circulating fund of RMB95 million Yuan. We have been chosen as an enterprise of "stressing contracts, keeping promises", "qualified enterprise of class I measurement", "a star enterprise of patent" by Shandong Province, "one of the 50 largest nongovernmental business enterprises", "a key protective famous enterprise", "an advanced reliable enterprise in quality", "a followed service enterprise in quality" by Qingdao City and medium-sized enterprise by Ministry of Agriculture. Our products were also awarded as "satisfying products for customers" by Shandong Province.

Our products can be divided into fireproof windows & doors series: steel fireproof windows & doors, wood fireproof windows & doors, steel fireproof rolling doors, inorganic fireproof rolling doors; anti-theft doors series: steel anti-theft doors, steel intelligent anti-theft unit doors, steel wood anti-theft doors, armored anti-theft doors, copper doors, garage doors; wood doors series: plywood doors, lacquer-free doors, solid wood doors and composite solid wood doors.

In 2002, our company successfully attained ISO9001:2000 quality certificate. With more than twenty years' development, our company has been ranked as the New High-Tech Enterprise with rich technical force, scientific test method, advanced production facility and brand-new management theory, fully met requirements of large volume-production.

Our products are widely used in model projects of national-grade developing uptown, and sold well in Shandong, Anhui, Henan, Hebei, Jiangsu, Zhejiang, Xinjiang, Beijing, Tianjin and other provinces and cities. We also do exportation all over the world, such as Japan, the USA, Russia, Zambia, Sudan and New Zealand etc.