... Meanwhile ,to launch different kinds of economic and technology cooperation to advance improvement!Company Profile dual ... fighting, paper, pharmaceutical, petrochemical, shipping, pumps, compressors, fans and other piping systems, use of units such as power ... concentration, solid-state materials. Material: NO.NAMEMaterial1Inner and outer rubberNR,EPDM,NBR,SI2Key frameNylon Core fabric3Pressurized ...