Quanzhou Mai Si EN Machinery is entered the field of undercarriage parts for excavator, bulldozer, driller, conveyor and other crawler machines since 2005.Main range includes track roller, carrier roller, sprocket, idler assembly, track chain, track shoe, high strength bolt and nut, bucket pin and bushing etc. After several years of developing, we have parts for many well-know machines like Komatsu,Caterpillar,Hitachi,Kobelco,Hyundai,Daewoo,Kato,Fiat-Hitachi,Sumitomo,Mitsubishi,Sunsung,Volvo. Casting, forging, machining, heat-treat,assembly, painting, test all done in our workshop can guarantee the delivery time, quality by our own. For the time being 40% of our products are for overseas markets. Not to spare any effort in improving the quality, let our products gain high reputation among the overseas and domestic clients. Keep improving! Let us be of your service!