German-style pure wooden doors and windows series are all environmentaily-friend of nature pure wood integrated materials. the doors and windows series entirely  introduce German-imported hardware transmission devices,realize various opening types possess the features of water-proof,antiso1arizations,anti-distortion and its functions of constant temperature,slience and anticiolence are also excellent.The nature pure wood of consisitency of inside and outside not only delivers us a sense of Nature-returned disposition and transcendent self-confidence,but also appends the philosophy of Green environmental protection.