1,30 inch seamless steel pipe 2,Outer diameter:10mm~900mm 3,thickness:1mm ... ,c75,sae1050,30 etc.Products: 30 inch seamless steel pipe Delivery condition:cold drawn ,hot-rolled,forged,hot treatmentDelivery time: have stocksIn shape: ... we supply steel round bar ,wire rods,pipe,plate,coil,flat steel,square steel,angle steel ...