... Pipe fitting 2.Standred: ASME,DIN,JIS 3.Carbon steel or alloy steel 4.Prompt delivery& good aftersale service 1.Detailed ... blasted, rust-proof black or blue oilApplicationPetroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etcDelivery Time20 days after the contracts ... Any questions, pls kindly let me know. XXS carbon steel pipe cap for high quality ASTM A234 WPB (CHINA)