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Quality Control

Quality Control 

ZYM Group focus on the value “ high- quality steel structure at competitive prices”. We control the quality for our clients and partners. From the start of the steel structures production, we adhere the standard of steel structure building strictly. We monitor the quality of the steel materials and our work. 

The whole quality control system are as follows, raw steel materials entering the field engineering, welding engineering, fastener connection engineering, steel parts processing engineering, steel component assembly engineering, steel component pre-assembly engineering, single-layer steel structure installation engineering, multi-layer and high-rise steel structure installation engineering, steel grid structure installation engineering, profiled metal sheet engineering, steel structure painting engineering, steel Structure and division project completion acceptance and other contents.

We are proud that our efforts are approved by our clients . ZYM Group is keeping moving forwards with the trust of our clients . We continually do the quality control and produce high quality steel structures . It is also the foundation of the success partnership.

steel structure test

Steel Structures Standard
Steel grade 
Carbon Structural Steel Q235B(S235JR SS400 A36)  GB/T 700-2006
High Strength Low alloy 
Structural Steel Q345B(S355N,A50)  GB/T1591-2008 
H beam GB/T11263-2010
Tube GB/T 6728-2002
Plate GB/T708.709
Angle GB/T706-2008
Fabrication GB50205-2001
HOT-galvanization GB/T13912-2002(ISO1461:1999)
prefabricated building