Hangzhou Longer Sawchain Co.,Ltd founded in 2007 is a professional saw chain and guide bar manufacturer for 17 years. Our company has a plant area of 15,000 square meters and a new reserve factory of 30,000 square meters, with an annual output of 10 million saw chains and 3 million guide bars. Our company has obtained UL&CUL, CE product certification and ISO quality system certification. It is a national high-tech enterprise with many product patents.