... . etc 2, Inserted: Cotton, nylon. etc available on request 3, Surface :Smooth , fabric pattern etc Rubber Insertion sheet 1.Rubber insertion sheet 2.Material:NBR ... ,EPDM,SBR. etc 3.Inserted:Cotton,nylon. etc available on ... shore ATensile strgth:from 2mpa to 10mpa Cloth impregnated black rubber sheet