AWS A1.1-2016 Metric Practice Guide for the Welding Industry.pdf PDF 15.67MB 60页 BS 3643-2-2007 ISO metric screw threads Part 2 Specification for selected limits of size.pdf PDF 575.13KB 48页 BS 3643-1-2007 ISO metric screw threads Part 1 Principles and basic data.pdf PDF 869.97KB 76页 BS 3692 2014 ISO metric precision hexagon bolts, screws and nuts. Specification.pdf PDF 1.92MB 48页 BS ISO 16745 2015 建筑物的环境性能 碳指标 使用阶段.pdf PDF 2.11MB 50页 JIS B2292-1-2005 Hydraulic fluid power-Dimensions and identification code for mounting flanges and shaft ends of displacement pumps and motors-Part 1:Inch series shown in metric units.pdf 未知