tower crane QTZ31.5

Descripción del producto

Our tower crane advantages:

 1. We have adopted the most advanced design technology of tower crane in china

2. We have possessed first –class production equipment and precise inspection and testing instruments

3. We have gathered numerous exports and excellent talents

4. We have formed an outstanding united talent team advancing vigorously for pioneering and innovation

5. Automatic submerged are welding , the standard for the main section limbs, boom chord welding ,high thermal efficiency ,penetration , high production efficiency , while reducing the pores and crakes defects, increase the weld strength .

6. All were welded steel structure of the carbon dioxide gas welding , heat concentrated welding pieces of heating a small area .Welding can reduce stress and deformation ,weld has high strength and resistance to rust and crack resistance

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7. The company has robot-welding production lines, and the main welding quality has international advanced level.

8. Sand-blasting is used for all masts to strengthen the harness of the steel surface, enhance the paint adhesion and extend the life.

9. Raw material is the first stage of quality guarantee .we purchase the bulk steel from the famous steel factory in directly!