... .ength:4-14m 4.material:Q195,Q235 rectangular steel tube sizes Product Name:hot rolled rectangular steel pipe OD15x15mm-600x600mm / 20x30mm ... LengthLess Than 12mSteel materialQ195 → Grade B, SS330,SPHC, S185Q215 → Grade C,CS Type B,SS330, SPHCQ235 → Grade D,SS400,S235JR,S235JO ... of DeliveryAccording To The Quantity And Specification Of Each OrderPaymentL/C, T/TWe focus on the production of ERW pipes, ...