... has evolved from one-coating-and-one-baking to double-coating-and-double-baking, and even three-coating-and-three-baking.4. ... bed, locker, bookshelf4. Carrying trade: exterior decoration of auto and train, clapboard, container, isolation lairage, isolation board5. Others: ... raw materials, working out production plan, production, test and inspection, packaging, storage, delivering, etc.3. The PC ...