Groundscrewisakindofdrillingpilewithscrewfordrivingunderthegroundmoreeasily.Me trong khi đó, thescrewincreasethecontactareasothatitgraspearthmorefirmlythaariestraditionalpostanchor.Soitcanbeusedinlooseearth, đất cát, đầm lầy, ga trải giường.
Groundscrewisakindofdrillingpilewithscrewfordrivingunderthegroundmoreeasily.Me trong khi đó, thescrewincreasethecontactareasothatitgraspearthmorefirmlythaariestraditionalpostanchor.Soitcanbeusedinlooseearth, đất cát, đầm lầy, ga trải giường.