Quality Control System:
We mainly do quality inspections from 4 stages.
a) Raw material test: All of our steel coils are purchased from two
nominated steel suppliers nearby Nanjing city. They are required to
offer Mill Test Certificate for each purchase batch, which test and
clarified clearly including but not limited to their steels’ Yield
Strength , Tensile Strength, Proof Strength, Percentage Elongation
after Fracture, Percentage Reduction of Area, Bending Testing,
thickness of Plating, Zinc Coating Mass test..etc. Our raw
materials’ physical performance and chemical properties are
guaranteed by supplier. Clients are also able to request for the
Mill Test Certificate or arrange third party like SGS to pick
sample section from his shipment to do test. When the raw materials
are arrived to our plant, the warehouse manager will check the
dimensions, quantities and weight roll by roll before storage.
b) Production & Semi-finished Management: Mostly labors are
local residents and they started to work since the factory was
built, stable and experienced. We print and put up detailed
production drawing and plan on each welding workbench, the workshop
director guide and do random sampling continuously during duty
c) Finished Products Management: Normally we have 3 staffs to do
the quality management for each order. The reliability point is
that these 3 staffs are : QC staff, this order’s sales and this
order’s technician. After checking the color and quantity, they
will assemble at least 1 set to complete the load capacity test,
anti-seismic test, powder coating adhesive and thickness test.
Inspection report confirmed by them are real, justify and effective
d) Goods Inspection System Before Leaving the Factory: The
warehouse management will check if goods packed as plan , package
quantity and dimension, preparing for loading.