Dongguan Changsheng Silicone Products Co., Ltd. is located in Dongguan, China. Our factory covers 5000 square meters. We are professionally engaged in silicone product design, manufacture, sale and services. We specialize in manufacturing silicone keys, silicone rings, earplugs and other kinds of silicone products. With good quality, dedicated services, reasonable prices and rapid delivery, we have gained ISO9001:2000 international quality system certification. We have won praise from ...