Established in 2005,Tian Jin Ying Bo steel pipe Co.,LTD is one of the largest factory specialized in manufacturing square and rectangular steel pipe. Our company occupies an area of 666000 square meters including 16000 square meters of building in phase I. Currently, we possess a 200*200*13mm large cold ben hollow model production line which is advanced in the domestic. Besides, four production line from 76 to 165 belong to us. Among those, the production line which can produce F200 adopt the most advanced technical. So the strip steel can change into square and rectangular directly. We output various specifications steel pipe products. The model of square steel pipe are 40*40-200*200mm and the rectangular steel pipe are 30*50-100*300mm, the thickness are different, the range are 1.8mm-13mm. The products are widely used in steel struction,mechanical manufacturing,construction,automobile...