№ EP4674609A1発明
審査中THREE-LAYER COMPOSITE PIPE AND MANUFACTURING METHOD THEREFOR
THREE-LAYER COMPOSITE PIPE AND MANUFACTURING METHOD THEREFOR
❖Orinko High Performance Materials Technology
Co., Ltd; Orinko Advanced Plastics Co., LtdZHENG, Wei; SUN, GangweiJan 6, 2026B32B, B32B, B32B +423