GENEVA, May 4 -- NANJING DADE STEEL PIPE CO., LTD. (No.331, Zhening East Road, Lishui Economic Development ZoneNanjing, Jiangsu 211200), 南京大得钢管有限公司 (中国江苏省南京市溧水经济开发区柘宁东路331号) filed a patent application (PCT/CN2024/090717) for "CONTINUOUS PRODUCTION DEVICE AND MANUFACTURING METHOD FOR SPIRAL WELDED STEEL PIPE OF COMBINED STRUCTURE" on Apr 30, 2024. With publication no. WO/2025/086589, the details related to the patent application was published on May 01, 2025.
Notably, the patent application was submitted under the International Patent...