腾骥（天津）精密机械有限公司生产销售怡合达带座磁铁:BMJ21、BMJ22、BMJ31、BMJ01、BMJ02可互换型号：
BMJ21-D4、BMJ21-D5、BMJ21-D6、BMJ21-D8、BMJ21-D10、BMJ21-D13、BMJ21-D16、BMJ21-D20、BMJ21-D25
BMJ22-D4、BMJ22-D5、BMJ22-D6、BMJ22-D8、BMJ22-D10、BMJ22-D13、BMJ22-D16、BMJ22-D20、BMJ22-D25
BMJ31-D4、BMJ31-D5、BMJ31-D6、BMJ31-D8、BMJ31-D10、BMJ31-D13、BMJ31-D16、BMJ31-D20、BMJ31-D25
BMJ01-D4、BMJ01-D5、BMJ01-D6、BMJ01-D8、BMJ01-D10、BMJ01-D13、BMJ01-D16、BMJ01-D20、BMJ01-D25
BMJ02-D4、BMJ02-D5、BMJ02-D6、BMJ02-D8、BMJ02-D10、BMJ02-D13、BMJ02-D16、BMJ02-D20、BMJ02-D25
BMH46、BMH51、BMH61可互换型号：BMH46-D4、BMH46-D5、BMH46-D6、
BMH46-D8、BMH46-D10、BMH46-D13、BMH46-D16、BMH46-D20、BMH46-D25、BMH51-D4、BMH51-D5、BMH51-D6BMH51-D8
BMH51-D10、BMH51-D13、BMH51-D16、BMH51-D20、BMH51-D25、BMH61-D4、BMH61-D5、BMH61-D6、BMH61-D8、BMH61-D10、
BMH61-D13、BMH61-D16、BMH61-D20、BMH61-D25
BMK51-D10