HGH,HGL,HGW,HGR高组装重载型滚动直线导轨，型号有：
     HGH15CA,HGH20CA,HGH20HA,HGH25CA,
     HGH25HA,HGH30CA,HGH30HA,HGH35CA,
     HGH35HA,HGH45CA,HGH45HA,HGH55CA,
     HGH55HA,HGH65CA,HGH65HA
     
     HGL15CA,HGL25CA,HGL25HA,HGL30CA,
     HGL30HA,HGL35CA,HGL35HA,HGL45CA,
     HGL45HA,HGL55CA,HGL55HA
     

     HGW15CA,HGW15CB,HGW15CC,HGW20CA,HGW20CB,HGW20CC,HGW20HA,HGW20HB,HGW20HC,
     
     HGW25CA,HGW25CB,HGW25CC,HGW25HA,
     HGW25HB,HGW25HC,HGW25HA,HGW25HB,
     HGW25HC,HGW30CA,HGW30CB,HGW30CC,
     HGW30HA,HGW30HB,HGW30HC,HGW35CA,
     HGW35CB,HGW35CC,HGW35HA,HGW35HB,