YANTAI YUCHENG MACHINERY CO.,LTD lay on the beautiful seaside city, Laishan district of Yantai.Founded in the year1999,We are now the professional manufacturer of reducers for tower crane and planetary reducers.Our company now develops quite fast with the company concept of "Employees' personality decides and creats the quality of the products." Now the employees have been more than160, with 26 of which are technical staff.And there are over 60 sets of advanced technical eqiupments in CNC manutacture centre.In 2003,we get the certification of ISO9001:2000,and in the year 2005,we become a member of "Chinese engineering industry association" and get the honour of "High-tech enterprise of Shandong Province", and own the documented prove on the relevent accessories of tower crane.