... 1. outside diameter: 75mm-2265mm2. thickness: 12mm-120mm3. standards: ANSI, DIN, JIS, BS, ISO, GB/T, JB, SH ... , HGS and so on.4. use: petroleum, chemical industry, medicine, electric power ... , urban construction, hot-water heat and environmental protection etc.5. certificate: ISO9001:2000 , ASME and Boiler A-level6 ... ,WP11,WP22,304,316,314L,316L carbon steel high pressure pipe flange