Making sand box also has strict requirements, sand box molding line sales, under normal circumstances is the need to design a good drawing, Changle sand box, according to strict production drawings, there can be no mistake, the selected materials outside the channel and steel, Internal network is generally a combination of stainless steel plates and sand box price, but when production must ensure strict seal, welding there can be no ventilation position where it is prone to casting defects, even collapse box, miss is as good sweeps clean. 1 apparatus. Power overload, short circuit protection 2. 3 ground protection. Overtemperature protection 4. To protect the device, all alarms are automatically cut off the power, and send voice prompts. GJB150.1-86 GB4208-93 standards GB2423.37-89 sand and dust sand and dust test methods Test methods GJB150.12 sand and dust sand and dust test GB10485 Test Method box structure: Case Case Material: high quality steel spray. Liner material: stainless steel SUS imported light board. Sight glass door for easy observation test cabinets to be tested like situation. Bottom of the chamber can be fixed with high quality PU wheels. Replace the bottom of the chamber has a dust equipment flask molding line manufacturers, Dragon Industrial (certified), Changle sand box provided by the Industrial Development Co., Ltd. Shandong dragon. 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.