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北京華德單向閥部分型號：
Z2DB10VC-1-40B/100 Z2DB10VD-7-40B/50
Z2DB10VC-1-40B/200 Z2DB6VC-1-40B/100
Z2DB10VC-1-40B/315 Z2DB6VC-1-40B/200
Z2DB10VC-1-40B/50 Z2DB6VC-1-40B/315
Z2DB10VC-2-40B/100 Z2DB6VC-1-40B/50

Z2DB10VC-2-40B/200 Z2DB6VC-2-40B/100

Z2FS10-30B北京華德疊加單向節流閥***

Z2DB10VC-2-40B/315 Z2DB6VC-2-40B/200
Z2DB10VC-2-40B/50 Z2DB6VC-2-40B/315
Z2DB10VC-3-40B/100 Z2DB6VC-2-40B/50
Z2DB10VC-3-40B/200 Z2DB6VC-3-40B/100
Z2DB10VC-3-40B/315 Z2DB6VC-3-40B/200
Z2DB10VC-3-40B/50 Z2DB6VC-3-40B/315
Z2DB10VC-7-40B/100 Z2DB6VC-3-40B/50
Z2DB10VC-7-40B/200 Z2DB6VC-7-40B/100
Z2DB10VC-7-40B/315 Z2DB6VC-7-40B/200
Z2DB10VC-7-40B/50 Z2DB6VC-7-40B/315
Z2DB10VD-1-40B/100 Z2DB6VC-7-40B/50
Z2DB10VD-1-40B/200 Z2DB6VD-1-40B/100
Z2DB10VD-1-40B/315 Z2DB6VD-1-40B/200
Z2DB10VD-1-40B/50 Z2DB6VD-1-40B/315
Z2DB10VD-2-40B/100 Z2DB6VD-1-40B/50
Z2DB10VD-2-40B/200 Z2DB6VD-2-40B/100
Z2DB10VD-2-40B/315 Z2DB6VD-2-40B/200
Z2DB10VD-2-40B/50 Z2DB6VD-2-40B/315

Z2DB10VD-3-40B/100 Z2DB6VD-2-40B/50

Z2FS10-30B北京華德疊加單向節流閥***

Z2DB10VD-3-40B/200 Z2DB6VD-3-40B/100
Z2DB10VD-3-40B/315 Z2DB6VD-3-40B/200
Z2DB10VD-3-40B/50 Z2DB6VD-3-40B/315
Z2DB10VD-7-40B/100 Z2DB6VD-3-40B/50
Z2DB10VD-7-40B/200 Z2DB6VD-7-40B/100
Z2DB10VD-7-40B/315 Z2DB6VD-7-40B/200
Z2DB10VD-7-40B/50 Z2DB6VD-7-40B/315

Z2DB6VC-1-40B/100 Z2DB6VD-7-40B/50