NC 08-14-1986 Welding Metal Fusion Welding Performance Classes《焊接 氧炔焊性能分类》.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

QJ Z 19-1984 螺孔毛坯内径光面塞规.pdf

QJ Z 33-1977 埸效应数字集成(P-MOS)电路测试方法.pdf

QJ Z 37-1978 四方铰刀 D=0.3～0.95.pdf

QJ Z 38-1978 四方铰刀 D=1～2.8.pdf

QJ Z 39-1978 螺旋机铰刀 D=1～2.8.pdf

QJ Z 40-1978 直柄阶梯铰刀 D=5～12.pdf

QJ Z 41-1978 锥柄阶梯铰刀 D=12～32.pdf

QJ Z 42-1978 硬质合金注油铰刀 D=15～25.pdf

QJ Z 43-1978 硬质合金套装注油铰刀 D=25～50.pdf