we have made this kind of product every month, its material is casting iron. we are very familiar with the technical skill. these products are mainly for Japan. This kind of casting: Material:gray iron Weight range:4ton--12ton Process:sand casting Standard:ISO,ASTM,DIN,EN, Rough casting and finished casting are the products which we can supply OEM is our main bussiness. Wellcome to contact us and send us your map and request,we will do our best to supply you a reasonable price and shipment date. About our company: We have more than 50years experiences incasting, we export toAmerica more than 200.000RMB per month,our custome is satisfied with our product and service very much!Our head company is one of the biggest factory in produce casting machines, so we have the best equipments and the timely technical support. Please leave your information !