1.Used in cementing tools to fix or restrict various external accessories such as centralizers, cement umbrellas and mud scrapers, including positioning rings, cement umbrellas, and mud scrapers. Casing Accessories, Drilling Packers,Milling Packers,Stop Collars,Cement Basket Puyang Junhong Rubber Co., Ltd. , https://www.pyjhxs.com
1. It is a device used to fix or restrict external accessories such as centralizers, cement umbrellas and mud scrapers. It can be divided into screw type, fixed screw type and percussion type.
2. The cement umbrella is a device installed at the bottom of the graded cement injector to prevent the sinking of the cement slurry and support the pressure of the liquid column.
3. The mud scraper is installed outside the casing of the cement-sealed well section to remove the filter cake on the well wall to improve the cementing strength between the cement ring and the formation.
Foshan Lighting was enlarged by the controlling shareholder
Foshan Lighting announced on January 10 that Shenzhen Guangsheng Investment lasted from 13th to 15th last month, and Guanghao Gold Holdings increased its holding price by 9.96, 9.86 yuan per share from the 16th of last month to the 3rd of this month. 763.86 million shares (0.6% of the total share capital) and 6,876,400 shares (accounting for 0.54% of the total share capital). Both companies mentioned above are the company's controlling shares. Foshan Lighting announced on January 10 that Shenzhen Guangsheng Investment was from the 13th to the 15th of last month, and the Guangyu Gold Control was averaged from the 16th of the previous month to the 3rd of this month. 9.96, 9.86 yuan / share increased holdings of 7,638,600 shares (accounting for 0.6% of the total share capital), 6,872,400 shares (accounting for 0.54% of the total share capital). Both of the above companies are concerted actions of the controlling shareholder of the company. After the increase, the company's controlling shareholder and its concerted action holders held 25.7%.