Zhuji City-Shing chain sprocket Ltd., a machinery industry, specializing in the production of YAS licensing standards and non-standard chain, sprocket, roller chain coupling.

• 诸暨市亚盛链条链轮有限公司，属机械行业，专业生产YAS牌各种标准及非标链条、链轮、滚子链条联轴器。