“Fire-proof valve, angle DN50
” NA.NA.IMPA 75 60 56
“Butterfly valve DN125
” NA.NA.DN125 PN16
“Flexible rubber extension with flanges DIN, 型号。 5570
高度 – 130毫米; LO管 – 165毫米; Ø=125mm.” NA.NA. Impa code: 735144
“Fire-proof valve, straight DN50
” NA.NA.IMPA 75 60 52
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