Ningbo Langsun Tungsten Carbide Co., Ltd. is a professional tungsten carbide manufacturer in China. We have a very experienced team in sales, developing and researching new tungsten carbide products. We have more than 10 years rich experience in tungsten carbide field, and have many OEM products produced for our domestic and aboard customers. Our main products include tungsten carbide wear parts, mechanical seal rings and sleeves, nozzles, carbide blade, carbide mining bits, drilling bits, drill tools, tungsten carbide inserts, tungsten rods and plates, carbide cutting tips, roll for high speed rolling for steel bar, tungsten balls and seats, tungsten jewelries, and non-standard customized tungsten carbide products. With strict quality control system, our products are certificated with ISO9001:2000. Our products have been selling well in such areas as Canada, USA, Europe, Southeast Asia etc. with a good reputation. We want to establish a long-term relationship with our customers, satisfying our customers with the best quality and service is always our chasing aim in our business.