The unused powder is collected and recycled for the next printing, making it more sustainable than some other manufacturing methods, in which you'd just have to scrap the carved out materials.

未使用的粉末收集并回收下一次打印，使得它比其他一些制造方法，在你只需要报废刻出来的材料更具有可持续性。

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Waste materials recycling Co., Ltd. Ningbo Jin Xin long-term high pick all kinds of waste materials and unused equipment for recycling.

宁波金鑫废旧物资回收有限公司长期高价上门回收各类废旧物资及闲置设备回收利用。

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Besides clean-up of materials, the company plans to remove unused utilities in the shaft, repair any damaged structures, install a water ring to control entry of water into the shaft and prevent ice from forming in winter, install a new power cable and a metal brattice between the eastern and western half of the shafts to provide a physical barrier, improving safety and functionality, company officials said.

FORBES: Hecla Officials Anticipate Clean-Up Of Mine Shaft Can Begin In Few Weeks