
TECHNICAL SUPPLY CONDITIONS FOR THREADED STEEL FASTENERS - PART 1: GENERAL REQUIREMENTS FOR BOLTS, SCREWS, STUDS AND NUTS
出版:Bureau of Indian Standards

專家解讀視頻
TECHNICAL SUPPLY CONDITIONS FOR THREADED STEEL FASTENERS - PART 1: GENERAL REQUIREMENTS FOR BOLTS, SCREWS, STUDS AND NUTS
出版:Bureau of Indian Standards
專家解讀視頻