AWWA standard for reduced-wall, resilient-seated gate valves for water supply service
American National Standards Institute., American Water Works Associationসাল:
1999
সংস্করণ:
1st ed
প্রকাশক:
American Water Works Association
ভাষা:
english
পৃষ্ঠা:
36
বইয়ের সিরিজ:
AWWA C515
ফাইল:
PDF, 1.60 MB
IPFS:
,
english, 1999