最近，一对尼日利亚夫妇参观了树立机械的一家工厂，并购买了几台木炭机。他们对树立木炭机和周到的服务非常满意。

尼日利亚夫妇三天前访问了中国。在来中国之前，他们一直在考虑投资木炭业务，但对投资方向还不太确定。他们认为中国资源丰富，科技先进，来中国考察一定会有所收获。

They were introduced to Zhengzhou, Henan province by their Chinese friends. When browsing the Shuliy charcoal machine website, they felt very professional, so they took the initiative to contact our sales consultant for a detailed consultation, and expressed their willingness to visit our factory.

受气候条件影响，尼日利亚农业发展不太充分，加之农业科技落后，难以实现国内农业转型。但尼日利亚是非洲最大的木材生产国之一，每年采伐近1亿立方米。

大部分木材被用作燃料，少部分用进口木材制成锯材、胶合板、精细木工板和国内用纸。夫妇表示，许多木材在加工和生产过程中被浪费，木材燃烧对环境污染非常严重。

在工厂参观期间，尼日利亚夫妇对一系列可以连续炭化原料的碳化机特别感兴趣。他们觉得这种木炭机工作效率高，产量大，具有很强的投资优势。

They believe that the investment in charcoal machine production of charcoal, not only can make comprehensive use of local branches, wood chips, cotton poles, peanut shells, and other resources but also the production of charcoal resources can be sold to fertilizer processing plants, the production of high-quality fertilizer to improve the local soil fertility, improve crop yield. They can also make a big profit in charcoal production because of the great demand for fuel of their country.

经过全面考虑，尼日利亚夫妇最终购买了树立机械的制炭设备。