... short delivery flange 5.ISO,API,CE Stainless steel flange 1. Material: stainless steel,alloy steel,carbon steel 2. Size range: FROM 1/2" ... 5. CE and certification: ISO9001:2000, API, BV, SGS, LOIYD 6. Applications range: "Petroleum, chemical, power, gas, metallurgy, shipbuilding, ... WP316/316L, WP321, WP347, WPS 312545 Duplex$super duplex stainless steel ASTM A 815 UNS S31803, UNS S32750, UNS S32760 ...