... -WPB, A420-WPL6, A234-WP12, A234-WP11, A234-WP5 CARBON STEEL PIPE FITTINGSStandard: ISO, ANSI, JIS, DIN GB/T12459, GB/T13401, ASME ... Range: Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc. carbon steel pipe fittings