Bitumen membrane refers to the fetal membrane and without fetal membrane. Yantai polypropylene. Those who use thick paper or glass cloth, asbestos cloth, cotton fabric and other materials impregnated tire roll materials made of asphalt, called the fetal membrane; asbestos, rubber powder incorporated into asphalt materials, the rolling system into a web-shaped material that is called the roll sheet without fetal membrane. Acceptance and clean base layer (screed) → formulated adhesive (as used with the preparation) → complex parts (yin and yang angle, cornice, fell into the water, piping, holes and other parts) additional layer → Construction of waterproof layer waterproof layer → inspection → protective layer construction inspection Rear. When using a polyester sheet with several other waterproof material required for use: 1, node (lap, shut at) enhance the process, usually polyurethane waterproof coating (which is usually the "911" waterproof coating); polypropylene manufacturer | Shouguang Tianxiang waterproof (certified) | Yantai polypropylene provided by Shouguang City Tianxiang waterproof material plant. Shouguang City Tianxiang waterproof material plant (www.txfscl.com) Shandong Weifang, waterproof, moisture-proof material leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Shouguang Tianxiang waterproof leadership with the staff warmly welcome all inquiries negotiations to create Shouguang Tianxiang waterproof better future.