... agent,reinforcement agent,anti-UV agent,stabilizing agent,foamimg agent,foaming adjusting agent etc.its made by extruding doughlike mixed material ... coated(anti-fading).2,Two typical types: pvc free foaming,pvc encrusted foaming.3,Its water-proof,anticrash,flame retardant(pass B ... ,grounded in dirt or rust stains become a problem, a cleaner that has Oxalic or phosphoric Acid Base may be used ...