... USA, Korea, Germany, Syria, Jordan,AND SO ON.(carbon steel seamless pipe,ERW weld ,spiral pipe seamless pipe, flange, ... requirement.Name:Flanges, Built to Different JIS Standards, Available in Various MaterialsRaw materials: stainless steel 304, 304L, 316, 316L and 321Size ... : 10 to 1200ABuilt to JIS standards 5K, 10K, 20K, ...