Choosing a new trailer

[Briguy]

Does anyone have an idea on how to make trailer parts last longer. My continental galvenized dual axel trailer is already showing some minor signs of rust forming. I sprayed the lug nuts with corrosion x max wax. Am I better spraying highly succeptable parts with cold galvenize, like the hubs and springs? Springs seem to really rust after only a few years. Had I not got this trailer for under $1200 bucks only 4 months old, I probably would have gone with an aluminum trailer,stainless package with turbolube hubs. I guess my question is am I better coating the trailer springs with cr X or cold Galvin spray? Oh yeah, Pettit makes this stuff called metal prep I used on the inside gas tank of my motorcycle. Maybe that would work.