TECHNOLOGY FOCUS - POLYMERS - Preferred Polymer: The polyamide polymer is polymer with main chain containing amido links. The polyamide polymer is chosen from polyamide 6, polyamide 66, polyamide 46, polyamide 610, polyamide 612, polyamide 614, polyamide 613, polyamide 615, polyamide 616, polyamide 11, polyamide 12, polyamide 10, polyamide 912, polyamide 913, polyamide 914, polyamide 915, polyamide 616, polyamide 1010, polyamide 1012, polyamide 1013, polyamide 1014, polyamide 1210, polyamide 1212, polyamide 1213, polyamide 1214, terephthalic acid adipamide, poly-terephthalic acid adipamide, terephthalic acid nonanedioyl amide, poly-terephthalic acid nonanedioyl amide, terephthalic acid decanedioyl amide, poly-terephthalic acid decanedioyl amide, terephthalic acid 12-diamide, poly-terephthalic acid 12-diamide, adipic acid adipamide/terephthalic acid adipamide copolyamide, terephthalic acid adipamide/m-phthalic acid adipamide copolyamide, adipic acid meta-xylene amide, poly-adipic acid meta-xylene amide, terephthalic acid adipamide/terephthalic acid 2-methyl glutaramide, adipic acid adipamide/terephthalic acid adipamide/m-phthalic acid adipamide copolyamide, caprolactam-terephthalic acid adipamide, polycaprolactam-terephthalic acid adipamide or their mixture. The polypropylene is polymer obtained by polymerizing propylene. The propylene polymer is mixture prepared by graft modification with maleic anhydride, mixed with other polymers, toughened by elastomer, filled and modified by fiberglass or inorganic filler. The polyethylene and ethylene polymer include high density polyethylene, medium density polyethylene, low density polyethylene, linear low density polyethylene, ultra high molecular weight polyethylene, metallocene linear low density polyethylene, crosslinked polyethylene, silane crosslinked polyethylene, chlorosulfonated polyethylene, chlorinated polyethylene, polyethylene oxide, ethylene-maleic anhydride copolymer, ethylene-alcohol acid ethylene copolymer, ethylene-vinyl alcohol copolymer, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-propyl acrylate copolymer, ethylene-butyl acrylate copolymer, ethylene-acrylate-acroleic acid 3-membered copolymer, ethylene-acroleic acid copolymer, ethylene-methyl acroleic acid copolymer, ethylene-acroleic acid ionomer, and maleic anhydride grafted polyethylene. The styrene polymer includes polymer polymerized by styrene, and copolymerized and modified polystyrene. The acroleic acid polymer includes acroleic acid, methyl acroleic acid and its acrylate homopolymer and acrylate copolymer, and mixture mainly containing acrylic resin. The acroleic acid polymer is polymethylmethacrylate. The acrylonitrile butadiene resin includes polymer obtained from monomer chosen from acrylon, butadiene, styrene, acroleic acid 1-4C alkyl ester, methyl acroleic acid 1-4C alkyl ester, chloroethylene, ethylene, propylene, maleic anhydride and maleimide. The basement membrane further contains inorganic fillers, and compatilizer and/or coupling agent. The compatilizer includes polyethylene and its ethylene copolymer. The ethylene polymer is obtained by polymerizing ethylene and at least one of monomer chosen from vinyl acetate, acroleic acid 1-4C alkyl ester, methyl acroleic acid 1-4C alkyl ester, acroleic acid, methyl acroleic acid, maleic anhydride, acroleic acid glycidyl ester, methyl acroleic acid glycidyl ester, ionomer of ethylene-acroleic acid copolymer, ionomer of ethylene-methyl acroleic acid copolymer, polypropylene and its copolymers, maleic anhydride grafted polyethylene, and ethylene-propylene copolymer. The thickness of the basement membrane is 50-500 mu m, preferably 150-250 mu m. Preferred Layer: The bonding layer is made of polyethylene and ethylene polymer, polypropylene and modified polypropylene, thermoplastic polyurethane, acroleic acid resin and acrylonitrile butadiene resin. The membrane (M1) is fluoroplastic membrane. The membrane (M2) is chosen from fluoroplastic, polyolefin, olefin copolymer or thermoplastic polyurethane.