Examination of visa is accurate, whether the visa is not a category of the contents of the column involved in the settlement of the visa situation, for their own reasons, such as the construction unit rework projects, construction projects and the construction site temporary facilities on-site labor and other units. Completion of settlement in certain cases can be directly entrusted to social counseling unit for review, but taking into account their specific business level auditors and professional ethics of how the construction unit can not directly control, for its settlement shall be reviewed by the extraction section construction Units for review, review the results directly with the commission after commission costs and auditing services linked or not, in order to promote social counseling units to strengthen their own management review process. Visible, the project investment stage is the basis for project cost management, the design phase is the key to cost control, the implementation stage and the completed stage is to reduce the project cost, control may increase the cost of the new project an important part of the project cost management is necessary to fully but also a focus on strengthening institution building, the whole process of the project cost, a full range of management, to play the maximum benefit investment.

Replace the piston and guide sleeve, all using a standard Y-type polyurethane rubber seals and oil seals, and for three pilot-operated check valve valve port for grinding, sealing performance of the fuel tank has been strengthened, to avoid the system leaks, ensure that the working pressure of the machine. In addition, all piping equipped with various pipe clamp, card block, were well secured to avoid strong vibration pipeline, reducing the pipe joints loose and the whole machine vibration, while also reducing the energy losses pipeline.