1. Material Information 1). Beryllium bronze explosion-proof tools explosion-proof performance (a) Standard code: GBEx II C (b) Hardness: HRC35 above (c) Tensile strength: 105-120 KGF/mm2 (d) Magnetic: 0 2). Aluminum bronze explosion-proof tools explosion-proof performance (a) Standard code: GBEx II B (b) Hardness: HRC25 above (c) Tensile strength: 75-85 KGF/mm2 2. Surface preparation Electrostatic spraying Essential color Passivation treatment 3. Polishing processing General polishing 4. Manufacturing technique (1) Casting (2) Forging Solid forging die Machinery forgings, including freedom of die forgings and precision forging  How to manufacture the safety tools? To prepare the raw material, blanking Smelting Pouring Cut the water gap Stored in the semi finished products warehouse Punching Drawing or slotting PE plain end and chamfering Drill hole Perfect the product and marking If Be-bronze, need heat treatment Polishing Surface treatment Finished!