When the required quantity of aluminium prototype is between 100 pieces and 1000 pieces, the manufacturing cost will be very expensive if they are still manufactured according to the manufacturing technology of one piece prototype.
These Foundry Steel casting brackets are used as driveshaft in Automatic garage door system, export to Germany more than 6 years. The Annual export quantity is 10,000pieces. We provide 100% quality inspection for customers, and we never get any complaint
