Brass sand casting 1.High quality with competitive prices 2.ISO9001:2000 3.Offer OEM service 4.In-time delivery Brass machiningProcesses: turning,milling, casting and machining. Good quality Zeyang Machinery has been in the Brass/Bronze sand casting industry for decads as a family owned and operated business. Zeyang produces high quality, pressure tight castings both on-time and on-budget. Our ...