ONA is a professional manufacturer of crushers and crusher parts. Servicing the mining and construction industries for years, we have built up a scientific system of production, sales and services. We are offering products over 50 countries and enjoy good reputation among our customers for high-quality products, integrity and responsibility .Our products range from cone crushers and jaw crushers to bronze casting parts, high-manganese steel casting parts and steel parts, which meet OEM standard and produced basing on the original drawings. High-efficient and high-precision processing equipment is widely used in our production line. Our qualified engineers, skilful workers and office staff with rich exporting experience ensure us to present high-quality products to our customers. Our goal is to provide overall cost-saving products and improve the productivity of equipment.Warehouse* We have prepared sufficient stock for our customers,The total value over 5 millon USD.Machining Workshop*ONA machinine most parts by our self to down the price and control the quality.Inspection*ONA inspect all the parts before delivery.We check all the deminsions and do UT, MT, PT to check the interior quality.We have very advanced inspection tools, like Faro Three coordinate checker, spectrograph.