31305878coatingPT2026-03-30 20:22:17UF31305879coatNDUF31305880coating, surfaceNDUF31305882surface coatingNDBT31298939materials by functionPTNT31320020[coating by composition or origin]PTNT31320021[coating by form]PTNT31320022[coating by location or context]PTNT31320025[coating by function]PT