Sand box equipped with a selection of works sand, sand box sales, bottom sand box design tainted sand hole, when the need to remove the frame, as long as the sand box sand release, sand box manufacturers, Bailey Liang was slow whereabouts. Designed well in advance of need fall height, Dongying sand box, such as a 30cm, 30cm compaction is required sand stored in the sand box. So I did not know you understand? In fact, the production is very simple sand box. It is a steel box sets, unloading sand bottom with holes, steel box filled with sand to withstand heavy pressure from the upper beam concrete loads. Casting sand box body design ① determine the type of sand box, select the flask material. ② riser arrangement and eat according to the amount of sand and other factors that determine the size of sand inside the outline. ③ determine the structure and thickness of the wall of the flask. ④ OK with me, strengthen the number, size and arrangement of the ribs and the air vent. ⑤ box set ears, and rings Xiangzhou location, the choice of positioning pins and pin sets. ⑥ flask fastening methods and aids design. Sand box sales | Dragon Industrial (certified) | Dongying, Shandong dragon sandbox provided by the Industrial Development Company Limited. Shandong dragon Development Co., Ltd. (www.julongshiye.com/) Shandong Weifang, machining leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Industry leaders at the dragon with the staff warmly welcome all inquiries negotiations to create a better future dragon Industry.