... demand of the charcoal in industries.Economic benefitWe are in the economic development stage, it uses much in the ... machine Machanism charcoals calculation of the cost and economic Analysis NumberItemsUnitQuantityUnit price(RMB)Amount(RMB)Notes1Raw ... the call.Henan Zhongcheng Machinery Co.LtdAddress: Xigang Industrial Development Area, Zhengshang Road, Zhengzhou, Henan, ChinaPhone:+86-0371 ...