IS F7305 5K/F7307 10K/F7309 16K船用铸铁法兰直通截止阀 5K/10K/16K Marine Cast Iron Flanged Globe Stop Valves JIS F7353 5K/F7375 10K/F7377 16K船用铸铁法兰直通截止止回阀 5K/10K/16K Marine Cast Iron Flanged Globe Stop Check Valves
