☆ 大口径螺旋钢管

螺旋缝双面埋弧焊钢管采用热轧钢带做原料，经常温螺旋成型，自动埋弧焊接而成，产品执行API Spec 5L、GB/T9711.1、GB/T9711.2 标准。主要用于石油、天然气工业中输送可燃流体和非可燃流体及钢构。公司现有六条现代化的生产线，年产φ219-φ1820mm，厚壁5-20mm ，钢级为B-X70的钢管40万吨。

Double-Side Spiral Submerged-ARC Welded Steel Pipe

This product makes the hot-rolling strip as the material, under normal atmospheric temperature spiraling and shaping and shaping, made by automatic submerged arc welded technology. Our products carry out API Spec 5L, GB/T9711.1, GB/T9711.2 standard. Mainly used in petroleum, natural gas industry to transfer flammable and non-flammable fluid and steel pipe construction .We own 6 sets of modernized production line. Our company produce  219- 1820mm ,wall thickness 5-20mm , steel grade B-X70 400,000 tons every year .