All-welded steel ball valve ALSO series RS flanged full-bore ball valve with gear DN250 PN16 of 09G2S steel All-welded steel ball valve ALSO series RS flanged reduced ball valve with reducer DN350 PN16 of steel 09G2S All-welded steel ball valve ALSO series RS flanged full bore ball valve with reducer DN400 PN25 of steel 09G2S All-welded steel ball valve ALSO series RS flanged full bore ball valve with reducer DN500 PN25 of steel 09G2S All-welded steel ball valve ALSO series RS flanged full bore with reducer DN350 PN16 of steel 09G2S All-welded steel ball valve ALSO series RS flanged full bore with reducer DN500 PN16 of steel 09G2S All-welded steel ball valve ALSO series RS flanged reduced ball valve with reducer DN300 PN16 of steel 09G2S All-welded steel ball valve ALSO ball valve RS series flanged reduced with reducer DN300 PN25 of steel 09G2S All-welded steel ball valve ALSO series RS flanged reduced ball valve with reducer DN600 PN16 of steel 09G2S