... game, micro measurement equipment, typewriter, cordless phone2, All manufacturing processes confirm to the ISO-9001/ISO-9002 standards3, ... the keypad's legends5, Multicolored key tops6, Silicone rubber keypads for various applications7, Silk screen printing, spray ... :2000 certification in October 2002 named DONGGUAN YIHENG RUBBER PRODUCTS CO.LTD.. We have many experienced technical personnel. Our ...