共找到 518 条与 化工设备 相关的标准,共 35 页
Atmospheric pressure rotary handle quick opening manhole
Horizontal hanging cover with neck butt welding flange manhole
Horizontal hanging cover with neck flat welding flange manhole
Horizontal hanging cover plate type flat welding flange manhole
Vertical hanging cover with neck butt welding flange manhole
Vertical hanging cover with neck flat welding flange manhole
Vertical hanging cover plate flat welding flange manhole
Swivel cover with neck butt welding flange manhole
Swivel cover with neck flat welding flange manhole
Rotary cover plate flat welding flange manhole
Types and technical conditions of steel manholes and handholes
Beam type gas injection packing support plate
本标准规定了机泵专业的选型内容、主要职责及设计各阶段的主要工作任务。适用于设计管理工作。
Scope of professional responsibilities for pumps and tasks at each stage of design
Standard series of radial flow secondary sedimentation tank suction dredger
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