通用阀门 不锈钢铸件技术条件
General purpose industrial valves-Specification of stainless steel castings
General purpose industrial valves-Specification of stainless steel castings
General purpose industrial valves-Specification of carbon steel forgings
General purpose industrial valves Specification of flake graphite iron castings
General purpose industrial valves-Specification of copper alloy castings
Part-turn valve actuator attachments
General purpose industrial valves Specification of spheroidal graphite iron castings
Spring steels
Industrial valves-Marking
Machines-Shaft heights
Technical drawings for glassware