Nantong Yiyu Equipment And Sports Co., Ltd. is a global manufacturer and supplier of a wide range of dumbbells, free weight and kettle bells. With 17 years' experience in blowing plastic field, we have advanced automatic machines and many skilled staff members. Some of our products have achieved national patents. We offer colorful designs and logo printing on the products, giving products more functions. All of these show our leading bowling technology. We have done OEM services for many famous brands, such as "York" in UK, "Gymstick" in Finland, "Universal"...