hard tooth surface gears, including spur gears,gear shafts and gear rings.gear box, spur gear, bevel gear,hardened gear Our company has the ability to forge, quench and temper, process, surfuce quench and carbonize high precision soft/ hard-surfaced gear or gear shaft. The main specification is within Φ2000mm, Mn≤40mm. Our company can produce 4000 tons of gears and gears shafs annually, and can ...