1. BS ISO 6002. Industrial valves. Bolted bonnet steel gate valves. (29th January 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (23 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Industrial valves. Bolted bonnet steel gate valves. (28th January 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (22 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗