Petani resin Crafts consist of two series with seven colours. Antique series includes gold, brass,aerugo,copper,bronze. Fashion Series includes chinared and cinnabar.
The passivation patinas and the composition of each phases becoming more homogeneous are moderator to the dealuminization corrosion of high aluminum bronze.
The uneven corrosion, where deterioration rust was founded mainly in most bronze object, was composed of star corrosion, hole corrosion, slice corrosion and hypophloeodal corrosion.