... , FKM, LAS, FVMQ, FFKM, PTFE, PU, ECO, IIR, ACR.· Color: Regularly black, red, blue, yellow for rubber material, for silicone, any colors ... design to mold support and samples. B. Prototype mold, usually in 7 days; C. Mass production mold, usually in 1~2 weeks.Please see ...