... Standard:ansi,din,jis, en, gb 5.offer sample Carbon steel A350 LF3 ThreadoletPrdoucts Name:Weldolet,threadolet,sockolet,union,plug, ... ,tee,reducer,cross,bushing,nipple,swage nipple,reducing nipple,flange,Half coupling,branch outlet,stubtube,etcCertificateISO/APISize:1/8 ... ''~4''Standards:GB /ASTM / ASME / DIN / JIS, Non-standard and customers drawings ...