BRECO/BRECOFLEXPU圆模双面齿无缝同步带T20DLTypeBrecoflexT20DLTypeT20DL/1500T20DL/1600T20DL/1700T20DL/1800T20DL/1900T20DL/2000T20DL/2120T20DL/2240T20DL/2360T20DL/2500T20DL/2660T20DL/2800T20DL/3000T20DL/3160T20DL/3360T20DL/3560T20DL/3760T20DL/4000T20DL/4260T20DL/4500T20DL/4760T20DL/5000T20DL/5300T20DL/5600T20DL/6000T20DL/6300T20DL/6700T20DL/7100T20DL/7500T20DL/8000T20DL/8500T20DL/9000BRECO/BRECOFLEXPU圆模单面齿无缝同步带T20DLTypeBrecoflexT20TypeT20/1500T20/1600T20/1700T20/1800T20/1900T20/2000T20/2120T20/2240T20/2360T20/2500T20/2660T20/2800T20/3000T20/3160T20/3360T20/3560T20/3760T20/4000T20/4260T20/4500T20/4760T20/5000T20/5300T20/5600T20/6000T20/6300T20/6700T20/7100T20/7500T20/8000T20/8500T20/9000)