As a leading manufacturer of mechanical seals and sealing products in China, Sino-Holding Co., Ltd, with over
two hundred staff, in our three factories, are specialized in designing, manufacturing and marketing mechanical
seals and sealing products. Founded in 1999, Sino-Holding continue to rapidly grow through our exceptional
investments and design development, hea dquartered in Beijing, have three modern factories in China. Through
constant development of more than 10 years, We have formed mechanical seals, Encapsulated o-ring, Silicon
carbide products,Wave springs products lines.