烟道式余热锅炉热工试验方法
Thermal test method for gas pass heat recovery boiler
检测标准
镍基钎料
Nickel base brazing filler metals
空气处理机组安全要求
Safety requirements for air handling units
铝及铝合金焊丝
Wire electrodes, wires and rods for welding of aluminium and aluminium alloys
固定的空气压缩机，安全规则和操作规程
Stationary air compressors-Safety rules and code of practice
三螺杆泵
Three serew pumps
气瓶锥螺纹丝锥
Special taps of taper threads for gas cylinders
蒸气压缩循环冷水(热泵)机组性能试验方法
The methods of performance test for water chilling(heat pump)packages using the vaper compression cycle
电站调节阀
Control valves for power station
S型和C型钢制滚子链条、附件和链轮
Steel roller chains,types S and C,attachments and sprockets
