i-Stron is a trading brand of Haiyan Zhenqiang Plastic & Rubber Co., Ltd.We are a professional manufacturer collected with production, sales and services, which have been focusing on the design and manufacture of rubber products for over 25 years.
We mainly produce rubber molded parts, like O-ring, rubber seal and other rubber accessories. With a mature R&D team, most products of ours are customized. Before the order, we can provide OEM samples. We take quality very seriously. Nowadays, our products have been sold to global markets.