Qingdao Wenrun Holding Co.,Ltd is a professional roof and pond system designer and supplier in China. Focus on PVC TPO and EPDM membrane for roof, EPDM membrane for pond. At the same time,whole accessories(corner,drainage,fastener,plates,termination bar,welding machine etc) and flashing for single layer roof system,green roof system,photovoltaic roof system and pond anti-seepage system.From consult and design service to providing high quality roof and pond system, we take care of every step in your project. Contact us,no matter it is about roof or pond,leave all your problems to us!We must give you satisfaction from material supplying to service.12 years experience, 1000 more projects, please trust us,we can do it.