Our company has a product research and development of the professional institutions, has a strict quality control and testing equipment, strong technical force, after years of development and production of accumulation and absorbs the advanced experience of domestic and foreign counterparts, constantly under the strict product testing and quality supervision, gain to the company's four major brands - xin, kelly, division, Ann of product performance is outstanding, stable quality, has been building doors and Windows line is widely used and well received by users and trust, product sales throughout the country and around the world.
Sell
Our company has a product research and development of the professional institutions, has a strict quality control and testing equipment, strong technical force, after years of development and production of accumulation and absorbs the advanced experience of domestic and foreign counterparts, constantly under the strict product testing and quality supervision, gain to the company's four major brands - xin, kelly, division, Ann of product performance is outstanding, stable quality, has been building doors and Windows line is widely used and well received by users and trust, product sales throughout the country and around the world.