- Are you factory?
Yes, absolutely. 14 years factory in Hubei province, China
- How do you control the quality?
100% inspect the size four times in the manufacturing process before a seal is exported.
Inprove the rockwell hardness with selective quenching
Phosphating process to improve and protect the corrosion resistance of the metal
- How long to make a shipment?
In 2 days with stocks, 2-5 weeks according to your purchasing quantities if no stocks.
- Can i buy one to try?
Yes, abosutely. We suguest you buy more because the freight cost one time is expensive, right?
More details please contact me! Good offer will be given to you.