Q. How about your delivery time?

A: Product will be shipped out within 24 hours if they are in stock. It is negotiable for the products out of stock.

Q. What is your terms of payment?

A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q. What is your terms of packing?

A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Relief Valve:
Because oil can be too thick to filter on a cold start, the engine needs to be prevented from starving. An oil filter is designed with a relief valve that opens when enough pressure is produced to force the calibrated spring downward. This allows unfiltered oil into the centre tube through the top.
End Disc:
An end disc which is made of either fibre or metal is used to stop the unfiltered oil from leaking into the centre tube. This end disc is bonded to each end of the filter medium.
Retainer:
A retainer is a bit of metal that acts as a leaf spring. It keeps the filter medium and end disc tight against the tapping plate.