Small gear ISO 9001:2008 The materisl: Stainless stell,Steel,Brass and Aluminum Surface:Plain ,Zinc Plated and Black oxide We can produce various specifications of the Gear, hardware accessories, screws, etc. Why you choice BulkTEK?l Running ERP-SAP system to manage all the orders and stocks.l Big warehouse for your yearly order stock, ship as schedulel Owned Laboratory for testing & quality ...