Yigang, the investor, is a professional manufacturer of JIS O-rings in Japan, with a history of more than 40 years. R. echo, its mainstream product, has been well-known in Japanese rubber industry for decades. In 1996, we set up a production base in Dalian Free Trade Zone, aiming to realize the top rubber products with high quality, low cost and short delivery time. The perfect combination of Japan's triple vacuum equipment, Japan's Mitsubishi technology's boundless mold, Japan's synthetic rubber, and the ISO9001:2008 quality management system and ISO14001 environmental management system recognized by international authoritative certification bodies creates the excellent quality of M. echo brand rubber products.