... " 2)material:carbon steel,stainless steel,etc 3)standard:ANSI B16.5 4)WT:#150-#2500 5)API,ISO,CE,etc size 1 ... ,F11,F22,F5,F9,F91,Etc)QualificationISO9001:2008 Quality Mangement System Certificate,ISO 14001 Environment Mangement System Certificate,OHSAS18001 Occupational Health ... corrosive oil,black painted,as per customer's request.4,high-temperature resistant with black painting.5,marking:acorrding to ...