| Range of Dimensions | 15mm ≤ Seat Diameter (ΦD) ≤ 120m
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| 4mm ≤ Stem Diameter (Φd) ≤ 25mm |
| 45mm ≤ Length (L) ≤ 450mm |
| Shape of Stem End |  |
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| Material Choice | Structural Steel, Martensite Steel, Austenite Steel, Nickel-chromium Alloy, Titanium Alloy and Alloy Powder |
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| Special Technic | friction welding of Bi-metal, plasma welding resurfacing on valve cone or stem terminal, plate welding on stem terminal and sodium-filling in hollow stem |
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| Exterior Treatment | soft nitridation, chromium plating, micro-finish, composite treatment of nitridation and chromium plating, and PVD coating |
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| Detection & Inspection Method | Automatic video measurement, ultrasonic detection, Fluorescent detection, magnaflux inspection and sealing inspection |
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| Application | Heavy-duty engine, race engine and common passenger car engine |
| Packing | Neutral packing if not specified particularly |
| Warranty | 12- month |
| Product advantage: |
| 1) Strictly tested in our test center before shipping |
| 2) High precision dimensions and reliable quality |
| 3) Prompt delivery |
| 4) Directly replaceable with OE product |
