High temperature resistant modified asphalt HY-2 for drilling fluid

• Henan Ocean Chemical Technology Co.,Ltd.was established in 1999 and is located in Chengguan Town,Xinmi City,50 kilometers southwest of Zhengzhou City,Henan Province.It is 3 kilometers north of the Zhengshao Expressway,and Zheng Deng passes through the factory quickly.The transportation is very c