Keeper Co. Ltd., a manufacturer of industrial rubber products including oil seals for cars, trains and ships, is focusing on increasing the sales of its Lub-Rubber line of self-lubricating rubber. Lub-Rubber possesses self-lubricating properties via the precipitation of a wax component. It is possible to make Lub-Rubber products based on ethylene propylene diene monomer (EPDM) rubber, nitrile rubber (NBR), acrylic…