Features: 1) Standard: ASTM A213, ASTM A312, ASTM A268, ASTM A269, ASTM A270, ASTM A789, ASTM A790, ASTM A249, ASTM A 688, JIS G3463 2) Size: Φ8 - 127", 1/8 - 5" 3) Elaborate designs available as per customers' requirements