Zibo Yifeng Mechanical Engineering Co.,Ltd is one of the leading China coal gasifier, gas storage tank, coal gasifier plant, coal gas generator, desulfurization process manufacturers and suppliers, equipped with productive coal gasifier factory, we are always at your service. our company has class I, II, III pressure vessel manufacturing qualification and advanced detection means, has passed the certification of ISO9001 quality management system is the strongest comprehensive strength, the largest production capacity professional manufacturer of coal gasifier industry in China.