JIS F7305 5K/F7307 10K/F7309 16K上海工良閥門有限公司船用鑄鐵法蘭直通截止閥
5K/10K/16K Marine Cast Iron Flanged Globe Stop Valves
JIS F7353 5K/F7375 10K/F7377 16K船用鑄鐵法蘭直通截止止回閥
5K/10K/16K Marine Cast Iron Flanged Globe Stop Check Valves