welded nominal size:DN250-DN1800
seamless nominal size:DN15-DN700
wallthickness:STD,XS,XXS,SCH10,SCH20,SCH30,SCH40,SCH60,SCH80,SCH160,ETC
bending angle:45,90,180
bending radius:R=1.5D-10D
standard:ASME:ANSI B16.9,ANSI B16.28,MSS SP75
DIN:DIN26.5,DIN2615,DIN2616,DIN2617,DIN28011
SGP:JIS B2313
EN:EN10253-1,EN10253-2