Special machine for lapping the sealing surfaces of gate-valve casings with outer diameter of 150–800 mm

✍ Scribed by Yu. P. Prokhorchev

• Publisher: Springer
• Year: 1978
• Tongue: English
• Weight: 157 KB
• Volume: 14
• Category: Article
• ISSN: 0009-2355
• DOI: 10.1007/bf01146829