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- 6 PCS Included(0.25mm Hardened steel*1 / 0.4mm Hardened steel*1 / 0.6mm Hardened steel*1 / 0.25mm Copper alloy*1 / 0.4mm Copper alloy*1 / 0.6mm Copper alloy*1)
- Hardening treatment, high-temperature resistance, anti-corrosion.
- With the advantage of both high toughness and hardness, long lasting and durable.
- Smooth inner wall ensures smooth discharge.
- Flat contact surface, effectively preventing leakage.
