... different colors 3)custom made pipe grommets 4)good quality, reasonable price Rubber Pipe Grommet Sizeaccording to customers' drawing ... , 2D & 3DMaterialSilicone,FKM,EPDM,NBR,SBR,NR,Neoprene,HNBR,Polyurethane,FVMQ,FFKM,Aflas, etc.DuroSilicone: 20 ... the manufacturing kinds of rubber products for more than 20 years, wide varieties, rich materials, and custom ...