广州大宝机械厂是广州市汽车工业集团属下引擎导管、气门及气门阀座的专业制造商，公司创立于1984年，产品种类齐全，可适用于各种工程机械、重型汽车、轿车、叉车、发电机组以及船舶引擎使用。现涉及机种有：三菱、小松、五十铃、日野、实力、洋马、加藤、神钢、康明斯、本田、丰田、马自达、铃木、日产、别克、大众、欧宝、雷诺、宝马、标致等等车型，产品出口到中国台湾、东南亚、东欧、俄罗斯、德国、南美等地。
   Guangzhou Double Machinery Factory was established in 1984 and has been specialized in the production and sale of engine valves,valve guides and valve seats.
   The material of our valve guides is FC-25.The hardness reaches HRB92-102.The carbon atom structure that presents a form graphite to distribute can provide good lubrication for the engine valve . The anti-wear performance of valve guide is double than that of traditional machining .Valve seats are finished by cnc machines to ensure the precision and quality.
    The products were used Monstruction machinery, Truck，Car, Forklift, Power set and ship.They are MITSUBISH,KOMATSU,ISUZU,NISSA,UD,HINO,TOYOTA,YANMAR,MAZDA,HONDA,KOBELCO,CAT,CUMMINS, DAEWOO,FORD,FIAT,OPEL,LUBLIN,BENZ、BMW、VW、AUDI、RENAULT、PEUGEOT,DAIHATSU、SUBARU、GM、LADA。。。。。。