1. Avoid any unwelded joints within 50 meters of the oil casing's insulating joint installation location.2. After the oil casing's insulating joint is connected to the pipeline, the pipeline must not be lifted within 5 meters of the joint. Pressure testing must be conducted together with the pipelin

First, Steel Pipe Processing and Furnace Loading:1. Workpieces prone to deformation during heat treatment should be kept warm on a special fixture.2. Workpieces should be placed within the effective heating zone.Second, Steel Pipe Preheating:1. Workpieces with complex shapes, abrupt cross-sectional

Q690GJE straight seam welded steel pipe, as a high-strength, low-alloy structural steel pipe, has demonstrated significant advantages in heavy-duty fields such as bridge construction, engineering machinery, and offshore platforms in recent years. This steel achieves a perfect balance between strengt

Q960E seamless steel pipe is a high-strength, high-toughness engineering steel pipe widely used in machinery manufacturing, oil extraction, power equipment, and heavy machinery. Its excellent mechanical properties and stable chemical composition make it one of the representatives of high-end enginee