The company invested 2 billion yuan. The first phase of the new annual output of 100,000 tons of large-diameter alloy pipes and 500,000 tons of casting and forging projects is about to be put into operation, and the second phase is under intense construction. This project has been designated as a provincial key project by the Hebei Provincial Government. PetroChina The group company laid a separate natural gas pipeline for this project, and the State Grid built a separate 110,000-volt substation for this project. Full line of pipe fittings and piping.