What's the difference between rustproof and uncorrodable?

Rustproof

Definition:

Example Sentences:

(1) Hand cooling and resulting comfort and pain were studied in 12 subjects, while touching six different materials (polyurethane foam, wood, nylon, rustproof steel, aluminium, and temperature-controlled metal) which were initially at ambient temperature.

Definition:

Example Sentences:

(1) The vascular folds corresponded to the epithelial folds demonstrated by SEM and LM of uncorroded samples.
(2) The greatest microhardness in both the uncorroded and corroded states was shown in the two high-Cu amalgams.
(3) The arrangement of the microvasculature of the rabbit gallbladder was studied by means of scanning electron microscopy (SEM) of vascular corrosion casts and parallel uncorroded samples, together with correlated light microscopy (LM) observations.
(4) The mucosal capillaries are arranged in structures having a bowl-like configuration with the convexity facing towards the serosal layer, and the concavity corresponding to the epithelial lacunae seen by SEM of uncorroded samples.