... mining enterprises, units, institutions canteens, as a boiled porridge, stew, cooking, cooking and stewing of meat dumplings. For many years, majority of ... stainless steel. The structure of full penetration welding is required by GB150-1998.3,The steam portion is made up of ... gas barrier and drainage of pot parts.5,Tipping pots by the worm wheel, worm and wheel bearings and other components ...