تاریخچه استاندارد
AWWA C507   2023   Ball Valves, 6 in. Through 48 in. (150mm Through 1200 mm) Fourth Edition 8000000 ریال
AWWA C507   2018   Ball Valves, 6 in. Through 48 in. (150mm Through 1200 mm) Fourth Edition 8000000 ریال
AWWA C507   2015   Ball Valves, 6 in. Through 48 in. (150mm Through 1200 mm) Fourth Edition 8000000 ریال
AWWA C507   2011   Ball Valves, 6 in. Through 48 in. (150mm Through 1200 mm) Fourth Edition 8000000 ریال
AWWA C507   2005   Ball Valves, 6 in. Through 48 in. (150mm Through 1200 mm) Fourth Edition 5000000 ریال
AWWA C507   1999   Ball Valves, 6 in. Through 48 in. (150mm Through 1200 mm) Fourth Edition 3000000 ریال

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