Let's deal with the marking of water valves - what the inscriptions, numbers and letters on ball valves, water shutoff valve, water pressure reducers, filters, fittings, check valves and other products of engineering plumbing mean.
- 4 жыл бұрын
Marking Ball Valves and water shutoff valve
- Рет қаралды 128,150
Пікірлер: 159