... EPDM.2)Better quality.3)Vulcanized different types and sizes.4)Cennecting rubber packing in marine hatch cover.About our ... marine hatch cover rubber packing (sponge and solid),shipping facilities rubber products,shipping rubber fenders and fittings,rubber seals for dock,rubber lining,and bridge shock ... Chuangxin Industrial Zone,Yuecheng,Jiangyin,Jiangsu,China. Hatch Cover Rubber Corner Packings