亚洲午夜精品aaa级久久久久,99久久精品成人免费,国产亚洲欧洲997久久综合,欧美黑人XXXⅩ高潮交

Coiled tubing,  also known as flexible tubing or flexible tubing, is widely used in the fields  of workover, logging, and drilling. Its production technology is the advanced  high-end technology in the oil and gas industry today. Prior to this, only two  companies in the world were able to manufacture and produce, and the supply of  products was very hard-to-get. China has always depended on imports. In order  to break the technological monopoly of foreign companies, our company has  learned from many parties and vigorously carried out technological innovation.  In 2008, we began to develop coiled tubing production technology, and in the  second half of 2010, we produced our own coiled tubing.

Note: Material specifications can be customized  according to user requirements.