钢结构用高强度大六角螺母
High strength large hexagon nuts for steel structures
检测标准
蒸汽疏水阀 分类
Automatic steam traps-Classification
蒸汽疏水阀 试验方法
Automatic steam traps-Test methods
蒸汽疏水阀术语、标志、结构长度
Automatic steam traps-Term,Marking,Face-to-face dimensions
机械安全防止人体部位挤压的最小间距
Safety of machinerynMinimum gaps to avoid crushing of parts of the human body
工业阀门 金属隔膜阀
Industrial valves-Diaphragm valves made of metallie materials
先导式减压阀
Pilot operated pressure reducing valves
弹簧直接载荷式安全阀
Spring loaded safety valves
安全阀一般要求
Safety valves-General requirements
减压阀性能试验方法
Methods of performance test for pressure reducing valves
