Shandong Tianxin Chemical Co., Ltd. is a branch of Shandong Ocean Chemical Industry Research Institute.(the only institute engage in the research of ocean chemical) Our company was founded in 1987 and covers an area of more than 200 mu. We have 200 employees and our annual sales income is above 300 million yuan. Our company is a hi-tech provincial enterprise specialized in the manufacturing of drilling and completion fluid. We are the largest export base for drilling and completion fluid. At p...