14-15以下岁一级片,国产精品伦理一区,激情欧美一区二区免费视频,噜噜噜噜噜18禁私人影视,欧美hd少妇,口述4p做爰全过程出,白嫩少妇和二男三p爽的大声呻吟

Oil production increase and displacement agent

2019-06-06

Product description: Product model: HA1800, which belongs to partially hydrolyzed polyetheramine, with a molecular weight of 1600-20 million and a degree of hydrolysis of about 25%. It is suitable for ordinary oil-displacing agent in low-temperature and low-salinity formation environment. According to the requirements of tertiary oil recovery in the oil field, the polymer can increase the production by 150 tons of crude oil per ton of polymer.


Jinhong Group:


魯ICP備18057964號-1 Support:Aosion