Ningbo Guoli Pulley Manufacture Co., Ltd. Has been specialized in  manufacturing plastic pulley/roller, die-punching pulley/bearing, zamak bracket roller, aluminum bracket roller, and non-standard bearings for about 25 years. Our company is the earliest manufacturer to produce pulleys in China. Now we are the most experienced company in this area, with complete product line (more than 3 thousands roller models) and most automated production line.We are committed to developing and designing different kinds of non-standard pulley bearings, with an annual production capacity of 120 million sets.