Shanghai Haosheng International Trading Co., Ltd.

In recent years, the company has been adhering "Safe, Green, Innovative"development
model. As a result of continuingly updating facility and technology, GOLDSTONE has
accomplished forging intellectualization,heating depuration, and producing safety.
and reached annual productivity capacity 20 thousand tons offlange and other types
of industrial goods. At present, GOLDSTONE is playing a vital role in flange industry
because ofits advanced equipments and capacity of production.