News

News

News

We are glad to share with you about the results of our work, company news, and give you timely developments and personnel appointment and removal conditions.
What Are The Production Processes And Characteristics Of Spiral Steel Pipes?11 2025-06

What Are The Production Processes And Characteristics Of Spiral Steel Pipes?

Longchangjie Machinery, a manufacturer of spiral steel pipes, specializes in anti-corrosion treatment. It adopts multi-layer epoxy coating technology, which is resistant to acid and alkali and corrosion. It is suitable for water transmission and transportation. As a professional wholesale supplier of anti-corrosion spiral steel pipes, it uses automated welding technology.
What Is The Production Process Of High-density PE Outer Skin?09 2025-06

What Is The Production Process Of High-density PE Outer Skin?

The production processes of high grade II polyethylene (HDPE) outer skins of Longchangjie Machinery Co., Ltd. mainly include the following methods: gas-phase method, slurry method and solution method. The following introduces several methods in detail:
The Characteristics Of Power Cable Protection Conduits05 2025-06

The Characteristics Of Power Cable Protection Conduits

Qingdao Longchangjie Machine Company produces the MPP Cable Protection Sleeve Pipe Production Line is a high-performance modified new model pipeline made by special material, it is according with development requirements of modern city.
The Working Principle Of Rolling Bearings03 2025-06

The Working Principle Of Rolling Bearings

The working principle of Longchangjie rolling bearings is to replace sliding friction with rolling friction, thereby reducing friction losses, improving efficiency and extending service life. It is a kind of precise mechanical component.
X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept