???????????na2co3 Cas ??497-19-8?????1?????????????????????????????????????2?????????????????????????????3????????????????????????????????4???????????????????????????????????????5???????????????????????...
Application1?face To Face Is According To Din3352 F42?flange Drilled Is According To Bs4504/en1091-23?nominal Pressure Pn10/pn16testdiameter?dn40-dn1200connection?flangeworking ...
Application1?face To Face Is According To Din3352 F52?flange Drilled Is According To Bs4504/en1091-23?nominal Pressure Pn10/pn16testdiameter?dn40-dn600connection?flangeworking ...