This product has a lot of specifications and is suitable for use. Its weight is about 4kg-12kg. Our company now has 6 specifications Investment casting is widely used in petroleum machinery, such as oil drilling and mining machinery equipment, petroleum machinery parts, tools, wellhead devices, and other equipment. Most of them use high chromium steel castings, Our company can develop, design, mass production, OEM and odm for petroleum machinery casting. In addition, such as mining machinery castings, train parts castings, auto parts castings, can be designed and processed Wei fang Jun long precision casting co., LTD., the main products are precision casting of carbon steel, low carbon steel, medium carbon steel castings, high carbon steel, alloy steel precision casting, high manganese steel, high chromium steel, high nickel steel, a variety of materials such as precision casting products .The parts ar…