... service,ptroleum craking,chemical fertilizer equipment,high pressure boiler,low & mid-pressure boiler,etc.Stainless Steel Pipe300 SeriesGB ... ,chemical industry,petroleum service,corrossion resistant,etc.High-pressure boiler pipe12Cr2MoWVTiB WB36 SA106 ST45.8GB5310-1995, ... in chemical equipment,fertilizer equipment and pipelines under high pressure or high tempretureOil casing pipeAPI J55, API K55, API ...