1. Elbow 2. Size Range Seamless Fittings : 1/2inch to 24 inch Weld Fittings: 2 inch to 72 inch 3. Wall Thickness SCH10,SCH20,SCH30,SCH40,STD,SCH60,SCH80,XS,SCH100,SCH120, SCH140,SCH160,XXS. SGP, DIN 4. Executive Standard ASME B16.9 ,MSS SP75,MSS SP43 ,EN10253, DIN2605 BS1640 , BS1965, GOST17375, GOST17376, GOST17378, GOST17379, ISO3419 ,ISO 5251, JIS B2311, JIS B2312, JIS B2313. 5. Material A234 WPB , C, A420 . WPHY 42, WPHY, ST37.0,ST35.8. 6. End Treatment Bevel Ends , Plain Ends , or as per Clients Requirments 7. Surface Treatment and Packing Sand Blast, Paint Black Lacquer or Transparent Oil . Wooden Case or Wooden Pallet or as per customers' requirements.