AWWA standard for resilient-seated gate valves for water supply service
American National Standards Institute., American Water Works Associationİl:
1994
Nəşr:
Rev
Nəşriyyat:
American Water Works Association
Dil:
english
Səhifələr:
36
Seriyalar:
AWWA C509
Fayl:
PDF, 1.63 MB
IPFS:
,
english, 1994