... sol and sodium silicate (soluble glass)Material availablestainless steel, carbon steel, Alloy Steel, WCB, Tool Steel and etc.Weight10g-200kgAccuracyclass CT4-CT7Surface ... 2,000MT per yearheat treatment:anneal, quenching, normalizing, carburizing,polishing, platingMachiningCNC and NC machining, turning, milling, drilling, boring, ... into plywood or iron case for transportation. Steel Casting Flange