... , is a professional production of square tubes, rectangular tube, galvanized square tube processing, hot dip galvanized rectangular tubes, square tubes of large diameter, export ... pipe Co., LTD the Lord do different party rectangular tubes, square rectangular tubes perimeter between 76 600 of any specifications party ... 130*130135*135 140*140 145*145 150*150 Rectangular tubes10*20-10*60 20*30-20*100 30 ...