Welcome to Longma, one of the biggest China steel pipe plant

Longma sells hundreds of thousands of tons of steel pipes every year.

Quality is the fundamental reason for our success.

ERW/EFW steel pipe

Out Diameter: 60.3-660.4mm(2″-26″) Wall Thickness: 4-25mm Length: 3-18 meters

Standard: API 5L(ISO 3183) PSL1/PSL2:GR.B-X80; ASTM A53:GR.A/B; ASTM A500: GR.A/B; ASTM A252: GR.1/2/3′ EN10210/EN10219: S235/S275/S355JRH/J0H/J2H; AS/NZS 1163-2016: C250/C250L0, C350/C350L0, C450/C450L0.


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