4th, Whiringa-a-rangi, 2020, Mr. PETER FRANZ, Tumuaki mo te Hangarau me te R&D o Grace, i hoatu he tiritiri hangarau whakamiharo mo te "Frontier Energy-saving Technologies and Development Trends of Plastic Pipe Manufacturing" i te hui perehi i te Hall 5 o Nanjing International Expo Ce...
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