Welded Steel Pipe Execution Standards

Welded steel pipes for low-pressure fluid transmission (GB/T3092-1993)

2. Galvanized Welded Steel Pipe for Low-Pressure Fluid Transportation (GB/T3091-1993)

3. Standard Carbon Steel Wire Conduit (GB3640-88)

4. Seamless Welded Steel Pipe (YB242-63)

5. Spiral-welded steel pipes for pressure fluid conveyance (SY5036-83)

6. Helical seam high-frequency welded steel pipes for pressure fluid conveyance (SY5038-83)

7. General low-pressure fluid conveying spiral seam submerged arc welded steel pipes (SY5037-83)

8. General low-pressure fluid transmission spiral seam high-frequency welded steel pipes (SY5039-83)

9. Pile Spiral Welded Steel Pipe (SY5040-83).