石油、石化和天然气工业用往复泵
Reciprocatingpositivedisplacementpumpsforpetroleum, petrochemicalandnaturalgasindustries
Reciprocatingpositivedisplacementpumpsforpetroleum, petrochemicalandnaturalgasindustries
Reciprocatingpositivedisplacementpumpsforpetroleum, petrochemicalandnaturalgasindustries
Stamping dies-Sliding plates
Foundry machinery-Noise measurement method of sound power levels
Sawing machines for metal cutting-Safeguarding specifications
Metal-cutting machine tools-General safeguarding specification
Requirements for the safety and health inproduction process of metal heat treatment
Safety requirements for resistance welding machine
Safety regulations of belt conveyor
Steel spherical tanks type and dimension data base