Now we have six spiral steel pipe production lines, two hot rolling seamless steel pipe production lines and four hot expanding seamless steel pipe production lines. The annual production capacity is 219mm to 416mm spiral seam double submerged arc welding steel pipe 200,000 tons, 57mm to 377mm hot rolling seamless steel pipe 200,000 tons and 377mm to 630mm hot expanding seamless steel pipe 60,000 tons. The products carry out the standards of SY/T 5037, GB/T 9711, GB/T 8163, APT 5L, API 5CT, etc. If you are intested in our cargo,welcome to contact me at any time.Tks!