about us
Ningbo
Fortune Auto Parts Manufacture Co., Ltd.
1.Manufacturer qualified with certificates like ISO9001
2.More than 15 years experience exporting all kinds of wheel weights, Tire Valves, Tire Repair Kits, Wheels
3.Never use inferior material
4.100% tested before shipment
Choose us
Ningbo Fortune Auto Parts Manufacture Co., Ltd. specializes in auto parts manufacturing.
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IATF 16949:2016
FORTUNE -
TUV
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FCC-ID
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ISO 9001:2015
Customer Visit News
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EPDM vs Natural Rubber in Tire Valve Stems: 70°C Aging Test Results and 5-Year Seal Life Prediction
Choosing the right rubber compound for a tire valve stem is not a trivial decision. The valve stem is the one component that must maintain an airtight seal across years of thermal cycling, UV exposure, ozone attack, and constant vibration. A leaking valve stem is a silent problem — the tire...
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TR413 vs TR414 vs TR415: Snap-In Valve Stem Length and Rim Hole Fitment Matrix for Passenger Car Aftermarket
The 4 Specs That Separate TR413, TR414, and TR415 Snap-in rubber tire valve types TR413, TR414, and TR415 are three of the most-commonly-confused ETRTO designations in the passenger-car aftermarket. They share the same .453 inch (11.5 mm) rim hole, the same EPDM/NR rubber compound class, and t...
