Puyang Guangming Chemicals Co., Ltd. is China's largest N-methyl pyrrolidone series product specialized manufacturer, but also the high-tech enterprise who can produce the only capacitance level (99.9% min)γ-butyrolactone (GBL). The company uses 1,4 - butanediol dehydrogenation process route toγ-butyrolactone (GBL) for the intermediate to produce pyrrolidone series products as the main body, N-methyl-pyrrolidone as the leading products. The production and sale ofγ-butyrolactone (GBL), N-meth...
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