Yejia Optical Technology (Guangdong) Corporation

Dongguan Tronshin Silicone Products Co., Ltd., belongs to YEJIA Group, and was founded in 2009, specializing in high quality Eco-friendly Silicone& Rubber products.

With the certifications of ISO9001 and ISO14001, our company covers about 2000 square meters, and has more than 200 employees.

TRONSHIN has 20 sets of Compression Machines and 8 sets of Injection Machines, with advanced production equipments and more than 15 years of experienced technical and mature management team, our main products include all kinds of Baby Products, Water Bottle Silicone Sleeves, Keyboard Covers, Silicone Rings, Silicone Valves, Electronic Components and other silicone accessories. All of our products have been approved by RoHS, FDA, LFGB and CE Testing.

We've established a very good business relationship with LG in Korea, WALCH Group in China, STARBUCKS& COSTCO in US, LULULEMON in Canada, KYOCERA& TAKEYA in Japan, etc. The products we've offered were well appreciated by their Purchaser.

TRONSHIN adheres to the principle of "Quality First".

We warmly welcome our friends to contact us freely, new and old ones, at domestic and abroad Markets.