Size: 1/2"-100" Material: Carbon steel, stainless steel, alloy steel Standard: ASME, ANSI,ISO,BS,DIN,EN,GB,JIS,ASME, Place of Origin: Shanghai, China (Mainland) Model Number: Flange Brand Name: ESTAN Standard or Nonstandard: Standard Flange Size: 1/4"-240" / DN10-DN2000 Certificate: ISO, ABS, API, CE, SGS Seal face:: FF ,RF, LJ, FM ,RTJ,RJ Pressure: Class150-3000(PN6-PN150) Packing: Plywood case tied by steel band or as per client requirements Working temp: -60°C~250°C Check from website： http://www.steelfittings-flange.com/html_products/spectacle-blind-148.html