NF A89-950-1989 Welding and allied processes Qualification of welding procedure Wet welding 《焊接及相关工艺 焊接工序的鉴定 湿式焊接 》.pdf

相关资源

IRS 70778-2-2018 Recommendations for determining the carrying capacity and fatigue risks of existing metallic railway bridges.pdf

IRS 70712-2018 Rail defects.pdf

IRS 50596-6-2018 Conditions for coding intermodal loading units in combined transport combined transport lines and wagons.pdf

IRS 50596-5-2018 Transport of road vehicles on wagons-Technical Organisation-Conveyance of semi-trailers with P coding or N coding on recess wagons.pdf

IESNA TM-23-2017 Lighting Control Protocols.pdf

IESNA RP-2-2017 Recommended Practice for Retail Lighting.pdf

ITU-R RAPPORT M 766-2 FRENCH-1990 Feasibility of frequency sharing between the GPS and other services《全球定位系统和其他服务之间的频率共享的可行性》.pdf

ITU-R RAPPORT M 763-3 FRENCH-1990 Signal level variation due to multipath effects and blockage by ship-s superstructure in maritime mobile-satellite service lin.pdf

ITU-R RAPPORT M 739-1 FRENCH-1986 Interference due to intermodulation products in the land mobile service between 25 and 100 MHz《由于互调产物在陆地移动服务25和100 MHz之间产生的干扰》.pdf

ITU-R RAPPORT M 319-7 FRENCH-1990 Characteristics of equipment and principles governing the assignment of frequency channels between 25 and 100 MHz for land mob.pdf

猜你喜欢

QC T 548-1999 汽车用洗涤电动机 技术条件.pdf

QC T 549-1999 汽车倒车报警器.pdf

QC T 550-1999 汽车用蜂鸣器.pdf

QC T 551-1999 汽车发动机 飞轮壳安装尺寸.pdf

QC T 552-1999 汽车、摩托车发动机 铸造铝活塞技术条件.pdf

QC T 553-2008 汽车、摩托车发动机铸造铝活塞金相检验.pdf

QC T 554-1999 汽车、摩托车发动机 活塞环技术条件.pdf

QC T 555-2000 汽车、摩托车发动机 单体铸造活塞环金相标准.pdf

QC T 556-1999 汽车制动器 温度测量和热电偶安装.pdf