90 A Hardness 5 Inches 2 Mm Thick 10 Gram Astm D Standard Rubber Gas Kit Expiration Date: 3 Years

90 a hardness 5 inches 2 mm thick 10 gram astm d standard rubber gas kit, solid and flexible at the same time. The kit will last for a long time because it is made from quality material. It has a flexible sturdy structure and good wear resistance. In addition, it can be used at low temperatures and with good conductivity. This rubber gas kit is made of quality rubber and not inferior rubber so tough and durable. It has good tensile strength that offers long service life with high performance, which can be used in surveying, mining, engineering design, etc.