... , and stability of small contraction. Carpet Non-woven fabric at the end of the box is used for carpet backing materials, boxes ... combinations. Box assembly back by the end of the carpet is divided into: asphalt, PVC, PU at the end, non-woven fabrics ... environment, without any adhesive, comply with environmental requirements; 5, non-woven mat made of convex-concave bottom type, concave-convex type ...