Jiahe Seiko Forging & Casting Co.,Ltd is one of the leading China forging drive shaft manufacturers,Website:http://www.jiaheseiko.com, equipped with a productive factory, welcome to wholesale cheap transmission shaft from us. truck drive shaft 1.Forging Process: 2.Description Technics:forging, CNC cast minimum tolerance: +/-0.15mm CNC minimum tolerance: +/-0.01m Inspection:Slide caliper, microcalliper, 100% inspection, crack detection, hardness detection OEM Service:We can produce it according to your drawings or samples. 3.BOM of Main Facilities: Name of Equipments Capacity Quantity Hot Die Forging Machine 1600 Ton 5 Lines Hot Die Forging Machine 1000 Ton   Hot Die Forging Machine 630 Ton   Hot Die Forging Machine 300 Ton   Automatic moulding line 5 Lines Heat Treatment Line 5 Sets Isothermal Firewire Production Line CNC 30 units Normal lathe 15 set Automatic Cutting mechine 1 set Normal lathe 15 set Drilling mechine 20 set Milling mechine   10 set Marking mechine 4 set A big laboratory contens all kinds of Testing Machine   1 set All kinds of Tools 10 set 4.Our automotive forings range: ifferent design of automotive forging parts is available, we can manufacture according to your drawing