1)size:1/2"to 72" 2)material:carbon steel,stainless steel,etc 3)standard:ANSI B16.5 4)WT:#150-#2500 ... )Alloy steel(ASTM A694 F42,F46,F52,F56,F60,F65,F70, A182 F12,F11,F22,F5,F9,F91,Etc)QualificationISO9001:2008 Quality ... -corrosive oil,black painted,as per customer's request.4,high-temperature resistant with black painting.5,marking:acorrding to customers ...