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

18

2024-10

Ultra-short radius horizontal well technology in Huabei oilfield to exploit the remaining oil at the far end

On September 19, the oil production plant No. 3 of Huabei Oilfield, which had been shut down for more than 4 years due to high water cut

10

2024-10

What are the precautions for manual operation of electric valves

?The electric actuator of valve ? is used to control the valve. If the valve cannot be opened and closed due to some factors, such as power failure, failur…

27

2024-09

Working principle of pressure valve

Pressure valve is a device used in hydraulic system to control and regulate liquid flow pressure.

20

2024-09

Six reasons for valve sealing surface damage

Because the seal plays a role in cutting and connecting, adjusting and distributing, separating and mixing media on the valve channel, the sealing surface is…

13

2024-09

Build green and low-carbon oil fields to be the "pillar" of green development

Reed ponds, rice fields, oil Wells criss-cross, Liaohe Oilfield Huanxiling oil production plant is located in the "wetland capital" reputation of P…

06

2024-09

Key trends affecting the industrial valve market

The increasing popularity of iot devices is driving the demand for industrial valvesIntegrated iot sensors in industrial valves enable real-time monitoring o…

30

2024-08

Method of preventing the regulator from getting stuck or blocked frequently

01, cleaning methodThe welding slag, rust, and residue in the pipeline cause blockage or jam in the throttle orifice, guide part, and balance hole of the low…

23

2024-08

The cumulative gas injection volume of Huabei oilfield reservoir group exceeds 15 billion cubic meters

On July 31, the cumulative gas injection volume of the gas storage group of the North China oilfield exceeded 15 billion cubic meters, demonstrating the role…

16

2024-08

Valve daily maintenance guide

09

2024-08

What is the difference between the use of butterfly valve and gate valve?

According to the role and use of gate valve and butterfly valve, the flow resistance of gate valve is small, and the sealing performance is good,

Home
Products
Application
Tel
主站蜘蛛池模板: 天等县| 三门峡市| 齐河县| 凤庆县| 莱州市| 鱼台县| 额尔古纳市| 南涧| 韶山市| 旌德县| 翁牛特旗| 开平市| 武强县| 景泰县| 韶山市| 安康市| 吉木萨尔县| 延川县| 呼伦贝尔市| 琼海市| 城固县| 临汾市| 承德县| 新巴尔虎右旗| 武威市| 西乡县| 双峰县| 都匀市| 江津市| 黔西县| 桐柏县| 彝良县| 吴江市| 石棉县| 衡南县| 常熟市| 枣强县| 建宁县| 太湖县| 古浪县| 玉山县|