Changzhou zhihengda Materials Co., Ltd. (Yueyangtong Trading)
Changzhou zhihengda Materials Co., Ltd (Yueyang Tongshang Trade)
Changzhou zhihengda Materials Co., Ltd (Yueyang Tongshang Trade) is a specialized supplier of oilfield drilling equipment and services based in Changzhou, China. The company has an in-depth understanding of local and international d......