Маркировка шаровых кранов и вентилей - что означают значки, цифры и буквы

Let's deal with the marking of water valves - what the inscriptions, numbers and letters on ball valves, water shutoff valve, water pressure reducers, filters, fittings, check valves and other products of engineering plumbing mean.

• #science_technology
• #
• #
• #
• #
• #
• #
• #
• #
• #
• #
• #
• #
• #
• #
• #
• #dn
• #pn
• #wog
• #wsp
• #
• #cwp
• #mop
• #
• #
• #ce
• #eac
• #lf
• #lead_free
• #pb
• #cw617n
• #aisi
• #cuzn40pb2
• #
• #
• #
• #
• #12
• #
• #
• #bar
• #plumbing_engineering
• #ball_valve
• #marking
• #which_means
• #water_pipes