YONGCHENG group has grown into China's largest copper alloy (brass, bronze) manufacturer of high quality crusher spares, excvavtor parts, ball grinding mill bushing, self-lubricated bushing supplying worldwide to the quarrying, mining industries. <br />YONGCHENG bronze parts have full traceability within our approved quality system. All YONGCHENG parts are manufactured in consideration of the original drawings with manufacturer's specifications. <br />First, all the YONGCHENG products test the Material components by Switzerland ARL3460 direct-reading spectrometer before casting to make sure the material specifications reach to original drawings requires. <br />Second, all the YONGCHENG parts manufacture in consideration of the original drawings specifications, Such as all the dimensions, tolerances, hardness, tensile strength, yields strength, elongation and so on. <br />Third, all the YONGCHENG parts will be inspect one by one according to drawing's request before shipment. Besides, all the packing of the goods are preventive from dampness, rust, moisture, erosion and shock, and suitable for ocean or multiple transportation. <br />YONGCHENG'S rule is: GOOD QUALITY, GOOD DELIVERY, GOOD PRICE, and GOOD SERVICES. So our products are well sold to all over the world, our main customers are including: KOMATSU, MISUMI, PARKER, SYMONS AND YOU. <br />Welcome to send your inquiry to us and we will reply all the inquiry within 36 hours. <br />