1. Ordinary carbon steel wire bushing (GB/T3640-88) is a steel pipe used to protect electric wires in electrical installation projects such as industrial and civil construction, installation machinery and equipment.
2. Straight seam electric welded steel pipe (YB242-63) is a steel pipe whose weld is parallel to the longitudinal direction of the steel pipe. Usually divided into metric electric welded steel pipe, welded thin-walled pipe, transformer cooling oil pipe and so on.
3. Spiral-slot submerged arc welded steel pipe (SY5036-83) for pressure-bearing fluid transportation is a hot-rolled steel strip coil for tube blank, which is often spiral-formed and welded by double-sided submerged arc welding for pressure fluid transportation. Spiral seam steel pipe. The steel pipe has strong pressure bearing capacity and good welding performance. It is safe and reliable after various strict scientific tests and tests. The steel pipe has a large caliber, high conveying efficiency, and can save investment in laying pipelines. It is mainly used to transport oil and natural gas pipelines.
4. Spiral seam high-frequency welded steel pipe (SY5038-83) for pressurized fluid conveying is a hot-rolled steel strip coil for tube blank, which is often spiral-formed by high-frequency lap welding for pressure fluid transport. Spiral seam high frequency welded steel pipe. The steel pipe has strong pressure bearing capacity and good plasticity, which is convenient for welding and processing. After various strict and scientific inspections and tests, the use is safe and reliable, the steel pipe has large caliber, high conveying efficiency, and can save investment in laying pipelines. It is mainly used for laying pipelines for transporting oil and natural gas.
5. Spiral submerged arc welded steel pipe (SY/T5037-2000) for general low-pressure fluid transportation is made by hot-rolled steel strip coil, which is often spiral-formed by double-sided automatic submerged arc welding or single-sided welding. Submerged arc welded steel pipe for general low pressure fluid transportation such as water, gas, air and steam.
6. Generally, spiral high-frequency welded steel pipe (SY5039-83) for low-pressure fluid transportation is made by hot-rolled steel strip coil, which is spirally formed at regular temperature, and is welded by high-frequency lap welding for general low-pressure fluid conveying spiral. High-frequency welded steel pipe.
7. Spiral welded steel pipe (SY5040-83) for piles is made of hot-rolled steel strip coils, often spiral-formed by double-sided submerged arc welding or high-frequency welding, used for civil engineering structures and wharfs. Foundation piles such as bridges.
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