Standard exported wooden pallet
Fumigate seaworthy packing
1.Castings processing must produce according to requirements and drawings
2.The workpiece is annealed to eliminate internal stress , the surface sand should be clean .Tooth tooth relative to the standard , the error should be controlled within 5 range .
3.The modulation of heat treatment hrc30-36 , surface frequency quenching , tempering thesurface hardness of hrc48-hrc54 , hardened layer 5-9mm , core hardness of HRC28 ormore , hardened layer microstructureRequired to achieve the m4-6 stages .
4.The mechanical tensile strength & N / mm2 > 620 , yield strength & N / mm2 > 375.
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