... ~250Mpa(150Lb ~2500Lb)4.Face treatment: Transparent oil, rust-proof oil5.Packing: in wooden cases, wooden pallets or ... . ApplicationPetroleum, chemical, power, gas, metallurgy, shipbuilding,construction, etcTypeSlip-On, Welding Neck, Blind, Socket Welding, Threaded and Joint etc. ... -grade metering, the People's Republic of China on the Administration of Production License for industrial products, ETC ...