Unidirectional pressure sealing agent DF-1

• Henan Ocean Chemical Technology Co.,Ltd.,a manufacturer of oilfield drilling aids,was established in 1999.It is located in Chengguan Town,Xinmi City,50 kilometers southwest of Zhengzhou City,Henan Province,and 3 kilometers north of the Zhengshao Expressway.Zhengdeng passes through the factory qu