材及自由发泡板机组的英文

hard/soft and free expansion sheet making plant

heat preserving furnaces

• 材:    timber
• 及:    reach; come up to
• 自由:    freedom; liberty
• 发泡:    bleb; foam rise; f ...
• 板:    board; plank; plat ...
• 机组:    set; assembling un ...