... (NR,BR,NBR,SBR,CR,EPDM etc) rubber seal Features:1. Materials advice: silicone and rubber (EPDM, also NBR, SI, HNBR, SBR, CR ... shore A or IRHD, tolerance can be ±5 shore A, for some special products, we can reach ±3 shore A tolerance ... run mass production. Mold/samples lead-time: For prototype mold, usually in 7days For mass production mold, usually in1- 2 weeksPackage: plastic ...