Constructed by the installation branch Yuntianhua Yunfeng Chemical Co., Ltd. Branch φ720 pipe installation on May 1 at full capacity. 
     Contracting methods for this project to PC, the main workload is φ720 pipe procurement, preservation, Surveying, piping, welding, installation of valves, mending Mending, under the ditch, pressure test. TIG welding with backing, hand welding filling, capping. Pipe external coating a cloth with the second end of the second side of coal tar epoxy anticorrosive. 
     Active in the construction units under the coordination of the Ministry in the project the joint efforts of all staff, to overcome the rainy weather, job site narrow pipe and other construction difficulties to many out of luck, has been completed φ720 pipe coating 2km, pre-bend 24, cloth tube 900 meters, the construction progress.