Middle excavator,Generator set, Mining machinery Special Characteristics For valve blank, Using shot blasting process after quenched-tempered, not only eliminates surface stress, but also improve fatigue resistance. Excavator intake valve for Caterpillar Technical parameter: Model Description Part number Material Size( ) Surface Characteristic Application Power-kw Guarantee D X d L 3306 INTAKE 6N9915 4Cr9Si2 51.3 60 9.5 136.4 chroming strengthen Middle excavator, Generator set, Mining machinery 110~130 100 000 km or 1 year EXHAUST 6N9916 21-4N+4Cr9Si2 48.2 60 ° 9.5 134.8 chroming strengthen Engine valve is the executive part of engine timing control of internal combustion engine, and it is the important parts which guarantee power performance, economic performance, reliability and durability of engine. Our Products Strength: 1.  High quality special valve bar material:  4Cr9Si2, 4Cr10Si2Mo, 21-4N, X60, X80, INCONEL751,21-4NWNb. 2.  Strict control process:  CNC processing line, network continuous furnace for heat treatment,welding of double matels, valve seat welding(STELI), U type quenching, chrome plating and soft nitriding on valve surface, 100% flaw detection for finish products. 3.  Quality certificate:  ISO9001, IATF16949 4.  Fast delivery capability:  for batch order, within 30 days 5.  Perfect service system:  professional engineer for solving variours problem in use. FAQ: How do you make our business long-term and good relationship? 1. We keep good quality and competitive price to ensure our customers benefit; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from. we are proessional Excavator intake valve Manufacturer Huacheng Automobile Accessories dedicated to produce Internal Combustion Engine Parts, Valve System, Piston, Timing Control, Timing Gear.