We use the standard SAE1045 Steel (C1045/#45 Forged Carbon Steel) as the hammer materials and refuse scrap steel, non-standard steel, and cast iron. The Hardness could meet EU and US standards 45-55HRc, Impact Test Resist 100 Impacts. Use the First-Grade wooden handles, Plastic handles, and Hickory handles, and refuse the Regenerate materials. Our Handles are environmentally friendly and non-toxic, The Handle Extraction Test is more than 1020kgf.