Non sparking Open Spanners

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!