alloy steel vertical casting tube 1.Standard:ASME,ASTM,ANSI,DIN,GB 2.Material:alloy 3.ISO9001:2008 ,Used fertilizer industry alloy ... vertical casting tube1.Standard:ASME,ANSI,ASTM,DIN,GB2.Material:Alloy3.Specifications: ERW/CW steel pipe to ASTM A53 Grade A/Grade B4.Size ... can work under presure for long time,advanced testing equipment to ensure thye quality,10.Packing:Wooden box ,sea-worthy plywood ...