... # steel 3) hardened 42-48HRC Double face sledge hammer with handle : (1)MATERIAL : 45# , forged. (2)HEAD PROCESS : polishing, ... : heat treatment, spray-paint,electrostatic spraying,chromeplate ,etc. (4) HANDLE : wooden(hickory, europen ash,ash , hardwood), fiber-glass,steel, ... Quality Management Systerm Certification. Germany GS certification. FSC certification for wood handle, hickory handle and ash ...