... .Material:alloy 3.ISO9001:2008 ,Used fertilizer industry alloy steel vertical casting tube1.Standard:ASME,ANSI,ASTM,DIN,GB2.Material:Alloy3 ... ,T/T15.Application:Used in Petrochemicals level, like fertilizer industry's Ammonia Plant,Urea Plant ,Ethylene Plant and Methanol Plant etc ... construction Features: Excellent heat resistancePressure resistanceHigh Impact strength alloy steel vertical casting tube