中文字幕av无码一区二区蜜芽三区丨香蕉久久人人爽人人爽人人片av丨无套内射chinesehd熟女丨99国产精品白浆在线观看免费丨久久精品免费一区二区

Hello! Welcome to the official website of Chuangpuda! Hello, Welcome!

Message 023-8111-1118

Carbon dioxide cracking expert

Chongqing Chuangpuda has reached a strategic cooperation agreement with the Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan

To promote the research and development of the new technological product "Carbon dioxide expansion Cracking Device"; On December 23, 2020, Chongqing Chuangpuda and the Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, reached a strategic cooperation, dedicated to elevating the carbon dioxide expansion fracturing technology to a new level and providing safe, reliable, environmentally friendly and innovative products for a wide range of customers.

The carbon dioxide expansion fracturing device is mainly applicable to mining, rock fracturing, earthwork construction, real estate leveling, tunnel excavation, underground coal mining, and areas where the use of explosives for construction is not allowed.

?