... :EPDM,CR.2.Application:Mainly used in marine hatch cover.3.Colour:Black.4.Watertight or oiltight hollow rubber seal.5.Features ... Co.Ltd specializes in manufacturing engineering rubber products,marine hatch cover rubber packing (sponge and solid),shipping facilities rubber products,shipping ... 86-13506168651 Add:Chuangxin Industrial Zone,Yuecheng,Jiangyin,Jiangsu,China. Black EPDM Hatch Cover Rubber Seal