... JIS G3302 GB/T-12754-20065. Application of Hot Dipped Galvanized Steel Pipe ConstructionOutside: Workshop, agricultural warehouse, residential precast unit, corrugated roof ... , lampshade, chifforobe, desk, bed, locker, bookshelfCarrying tradeExterior decoration of auto and train, clapboard, container, isolation lairage, isolation boardOthersWriting panel, garbage can ...