This company is the national ministry of construction, the national quality technology supervision and administration of the determination of tower cranes, and construction lifter designated production enterprise, using international standards, and through ISO9001; 2000 quality system authentication, shandong construction hall is construction machinery association member unit. Is the shandong jinan area production of tower cranes, and the manufacturers of the largest construction lifter, one of being the leading level for many years, the product exports more than the world come home. Since established, we now provide fixed self-raising hydraulic pressure tower crane QTZ31.5 series, QTZ40 series, QTZ50 series, QTZ63 series and QTZ80 series, which are guaranteed by the national qualification certificate. They are all at the top level of the domestic market.