For some time, the rubber market place has remained precisely the same. Rubber possibly consisted of natural rubber or synthetic rubber. The essential use for rubber was like a cushion of some variety- possibly as reliable rubber or foam rubber. Neoprene/EPDM rubber: A lot more than just a blended substance, https://holdenodqes.answerblogs.com/34020458/water-proof-rubber-foam-fundamentals-explained