... .Superior quality, fast delivery,low price 3. ISO9001:2008 certified rack gearPlace of origin: Zhejiang, ChinaBrand: BulkTEK 1. Standard and nonstandard ... )2. Supply spur gears, bevel gears, helical gears, worm gears, rack gears 3. Material: carton steel,stainless steel,brass or aluminium ...