They found that when tungsten was added to the nickel it produced a suitable structure. The bonus was that the mixture was capable of being plated and in a way that was more environmentally friendly.
他们发现把钨加入镍会产生适当的结构，额外令人高兴的是其混合物能被电镀，并更有利于环保。
2
The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.