Chongqing Shuangchi Doors And Windows Co., Ltd located in Chongqing China.it is a professional R&D ,design,production and sales of solid wood door for the modern factory .We adhering to control the quality strictly,pursuit of high quality,so we only specialized in wood door. Through the several year of rapid development.We have gain a large market share and recognition in the domestic.the company passed the ISO9001 quality system certification and awarded numerous honors etc.the company spend two million dollars to introduced the fully automatic production line ,so that reduce the production cycle and improve quality of products. [email protected] Whatapp:+861842303484â Wechat:Colin-Yang QQ:2206541588 Â