天津合众石油科技有限公司
Exhibit Profile：
The company is mainly engaged in the production and sales of finished oil tubing, casing, tubing coupling and casing coupling products. The stock of oil tubing coupling from 1.9
The company is mainly engaged in the production and sales of finished oil tubing, casing, tubing coupling and casing coupling products. The stock of oil tubing coupling from 1.9
Website：http://cn.tjhezhong.com/