说明：1、规格代号以长和宽为其规格参数，如HJG-
K3040AT，其中30为导轨块宽，40为导轨块长。2、产品标记示例：
HJG-K3040AT，其中A表示履带式导轨块，HJG-K2560BL，其中B表示燕
尾式导轨块，HJG-K3050T，表示滚动导轨块，T表示联接孔为通孔、L
表示联接孔为螺孔。3、滚动导轨块精度表精度等级F、E、D、C各级公
差值0.001、0.005、0.003、0.002供用户选择，分组允差是制造厂的
允差。例：滚动导轨块F、E级都在同组公差以内，D、C两级对用户、
一组数量的公差保证在0.003MM、0.002MM以内，对制造厂则可按分组
允差值制造常用型号：HJG-K3040A HJG-K3650A HJG-K4560A HJG-
K5570A HJG-K6890A HJG-K82125A HJG-K3050 HJG-K3662 HJG-K4575
HJG-K5585 HJG-K68105 HJG-K82145HJG-K2560B HJG-K2670B HJG-
K2764B HJG-K3896B HJG-3070B HJG-K40100BHJG-K40125B HJG-
K52140B HJG-K52203B HJG-K76198B HJG-K124333B HJG-K3475C
HJG-K47104C HJG-K64140CHJG-K
