部分回转阀门驱动装置的连接
Part-turn valve actuator attachments
检测标准
通用阀门球墨铸铁件技术条件
General purpose industrial valves Specification of spheroidal graphite iron castings
工业阀门标志
Industrial valves-Marking
机器 轴高
Machines-Shaft heights
技术制图玻璃器具表示法
Technical drawings for glassware
金属阀门 结构长度
Metal valves-Face to face,end to end,center toface and center to end dimensions
熔模铸造用硅砂、粉
Silica sand and flour for investment casting
技术制图焊缝符号的尺寸、比例及简化表示法
Technical drawings Dimensions,proportions and simplified representation for welding symbols
熔模铸造用铝矾土砂、粉
Bauxite sand and flour for investment casting
圆头方颈螺栓
Cup head square neck bolts
