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HK1 Barrel |
Iron-based Ni-Cr alloy, economical and wearing resistance, alloy depth of 1.5-2mm，HRC60±2。 |
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HK3 Barrel |
Ni-based alloy, super wearing resistance, alloy depth of 1.5-2mm，HRC40±2。 |
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HK5 Barrel |
Ni-based alloy, super wearing resistance and corrosion resistance, alloy depth of 1.5-2mm，HRC45±2。 |
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HK7 Barrel |
Co-based alloy, high speed, pressure and temperature(600) resistance, wearing and corrosion resistance, alloy depth of 1.5-2mm，HRC50±2。 |
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