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1. Multi-ribs of insulator eliminate flashover.
2. Insulator made of 95% pure alumina, strong resistant to heat shock, great mechanic and electric features, super insulation.
3. Nickel plated housing prevents oxidation and corrosion, heat crimping process ensures absolute gas-tight fit.
4. Inner sealing with conductivity glass ensures a fine conductivity and sealing.
5. Multi-layer gaskets are elastically strong, and reliable in sealing.
6. Copper core electrode prevents oxidation and corrosion, good electric and heat conductivity, prolongs spark plug service life
spark plugs
| Low Quality | High Quality | |
| Insulator | Alumina Content 87%-90% | Alumina Content 95%,Reliable Insulation ,Heat Bearing And Mechanical Performance |
| Housing | Made By Meter Lathe,Low Precision,Low Antioxidation | Shape By Cold Extruding,High Precision,High Antioxidation |
| Center Electrode | Low Nickel Nontent Cheap Raw Material CNY 25-28/KG | NiCrsi Alloy High Raw Material CNY>250/KG,High Ablative Resistance,Long Service Life |
| Bolt | A3 Steel As Material,No Tensile Test | Ml10 Riveting Screw Steel ,Pass Tensile Test |
| Printing | Overglaze Color | Underglaze Color Smooth Surface Durable Printing |
| Gournd Electrode | Inferior Material Quanlity | Magno Alloy,Abative Resistance |
| sealant | Aluminum Powder Glass,Low Thermostability | Copper Powder Conductive Galss,High Thermostability |
| inner seal | Bolt Part Heating,Low Combination Between Sealant,Low Seal Performance | Heating combination by sintering furnace,stable quality control,high seal performance. |
| Housing Carving | Twist Carving | Rolling carving,clear and balance carving |
| Insulator Capacity | no test normally | Pass 25-35KV high voltage test,high insulation perfomance |
| Whole Assembly | Poor quality stability | Large current hot state seal,high seal performance |
| Appearance | Rough,rolling plate rough screw,sintering scar | Nice ,hanging palte clear screw,nitrogen protection no scar left |
spark plug c7hsa