... from one-coating-and-one-baking to double-coating-and-double-baking, and even three-coating-and-three-baking.4. ... . Construction: (Outside) workshop, agricultural warehouse, residential precast unit, corrugated roof, wall, rainwater drainage pipe, terrace, retailer ... locker, bookshelf4. Carrying trade: exterior decoration of auto and train, clapboard, container, isolation lairage, isolation board5. ...