Ningxia KS Minerals & Industrials Co.,Ltd. is a joint-stock system operation of enterprise group, we mainly focus on producing and exporting business, are one the largest leading manufacturers traders in China,enjoying high reputations for good business ...

zhongsheng gas equipment company is specialized in the development, production, erection, testing and service of coal gasifier.It cooperated with many colleges to develop single stage gasfier double gasifier, filtering equipments cooling machines. So ...