午夜精品久久久久久久久久久久,一本色道无码不卡在线观看,双性 大肚 怀孕 产乳h,xxxx日本少妇做受

CN | EN

News

25

2025-04

Dagang Oilfield has independently developed a large model to build a new intelligent ecosystem

As of April 21st, the Port Intelligence application large model of Dagang Oilfield has been online for three months, with an average daily call volume of ove…

18

2025-04

The construction of long-distance oil and gas pipelines in China has entered the era of "all-terrain automatic welding"

?On April 8th, the "Four-All" pipeline welding inspection robot technology equipment system independently developed by our country was put into

11

2025-04

What are the selection conditions of electric butterfly valve and pneumatic butterfly valve?

Electric butterfly valve is a very common pipeline flow regulation device, widely used, involved in many fields, such as the regulation of water flow in the …

28

2025-03

A scientific and technological achievement of Southwest Oil and Gas Field Company has reached the international advanced level

On March 24, the technical achievements of the "Key technologies and Applications for the detection and evaluation of high-risk devices in Oil and gas f…

21

2025-03

The structure and working principle of the trap

Steam trap in the steam heating system plays a role in preventing steam drainage, choose the right trap, can make the steam heating equipment to achieve the …

14

2025-03

The CBM production of Huabei oilfield continues to rise strongly

?In February, the daily production of coalbed methane in Qinshui coalbed methane field of Huabei Oilfield continued to maintain a high operating state of mo…

07

2025-03

The 21st Tianjin Industry Fair 2025 intelligent pump valve exhibition

The 21st Tianjin Industry Expo (CIEX) will be held at the National Convention and Exhibition Center (Tianjin) from March 6 to 9.

28

2025-02

How to choose the right valve in pipeline design?

?In the fluid piping system, the valve is the control element, its main role is to isolate the equipment and piping system, regulate the flow rate,

21

2025-02

Valve components anticorrosion precautions

1. Valve stem corrosion and protectionMain causes of valve stem corrosion:The corrosion damage of the valve body is mainly caused by the corrosive medium, an…

14

2025-02

China's first offshore gas storage facility officially put into operation!

?At 13:00 today, with the issuance of gas production instructions, the production valve of Nanpu No. 1 gas storage well of Jidong Oilfield Branch of petroch…

Home
Products
Application
Tel
主站蜘蛛池模板: 上蔡县| 柞水县| 海宁市| 吉安县| 商城县| 漳浦县| 玉田县| 大港区| 许昌市| 太仆寺旗| 铜川市| 裕民县| 南投县| 突泉县| 江津市| 夹江县| 高雄县| 湛江市| 磴口县| 江阴市| 清新县| 呼图壁县| 昔阳县| 永仁县| 兴隆县| 天峻县| 龙川县| 蕉岭县| 麟游县| 伊金霍洛旗| 海淀区| 乌兰察布市| 洛隆县| 日喀则市| 新宁县| 桑植县| 昌宁县| 青岛市| 红河县| 宣恩县| 绵阳市|