Tianjin Liye Territory Of Cold Formed Steel Co Ltd

First of all, our company invested RMB**0 million and RMB*0 million respectively in introducing domestic advanced high frequency welding square and rectangle pipe production line and straight seam submerged arc welding pipe production line. 

Secondly, the forming method of square and rectangle pipes is ERW, using high quality rolled plate and the reinspection is not qualified after slitting or coil automatic forming and welding, computer control the best amalgamation in temperature at the same time, the tube inside and outside burr, nondestructive testing qualified. Our products are widely used in construction steel structure, large stadium, lifting equipment, shipbuilding and other fields. Our annual production is **0,**0 tons. Product specifications range from **0 x **0 to **0 x **0mm, and rectangular tube specification is up to **0mm, with the thickness of 8.0 ~*0.0mm. The material quality is Q**5, Q**5, *0#, L**5. The standards are GB/T********2 and GB/T********2. The forming way of straight seam submerged arc welding pipes is JCOE. Our products are used in urban building structures, bridges, DAMS, onshore and offshore oil and gas, coal slurry, slurry medium such as transport and offshore platform, power station and chemical industry. The annual production is **0,**0 tons, with specifications of **1mm*1,**0mm, wall thickness of 7mm to *0mm, and length of ***2.8m. The standards are GB/T********8, GB/T***1.*****7, and API5L.

Thirdly, we have our own patents and utility patents, namely, feed roller device of a welder, a multiply caliber roundness correction unit, a submerged arc welding pipe butt joint device, a high-frequency welder squeeze roller adjusting drive set, a milling machine automatic pin, a production line of cold-formed steel shearing butt centering device.