1. Raw material: steel ingot were melt by  EAF+LF+VD ,If necessary will do ESR 
2. Upon receipt of raw material, HHF QCP will inspect its quality in our laboratory.
3. QCP will perform inspection on every step,we will keep records according to the requirements of QMS.
4.We provide Mill Certificate, includes Chemical compostition, Mechanical properties, UT , MPI ,Dimension report

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