Established in 1998, Wulian Changtai Machinery Manufacturing Co., Ltd. is a specialized manufacturer of motorcycle chains.Our major products are as follows: 420 ( known as the 08A )428 ( 08B )428H ( 08BH )530 ( 10A )630 ( 12A )We wait your answers.Wulian Changtai Machinery Manufacturing Co., Ltd.Website: http://www.rzchangtai.com/Skype: davezhu007Add: No. 8 Kunshan Road, Wulian county, Rizhao City, China.