GENEVA, April 17 -- SINOHYDRO BUREAU 7 CO., LTD (No. 349, Chengguan East Road, Beida Street, Pintong Town, Pidu District,Chengdu, Sichuan 611730), 中国水利水电第七工程局有限公司 (中国四川省成都市郫都区郫筒镇北大街成灌东路349号) filed a patent application (PCT/CN2025/080459) for "UNDERGROUND CONCRETE AGGREGATE SCREENING AND WASHING WORKSHOP AND UNDERGROUND CONCRETE AGGREGATE SCREENING AND WASHING SYSTEM" on Mar 04, 2025. With publication no. WO/2026/076872, the details related to the patent application was published on Apr ...