J41W不銹鋼304/316國(guó)標(biāo)截止閥簡(jiǎn)介
J41H國(guó)標(biāo)手動(dòng)碳鋼截止閥簡(jiǎn)介
J41H/W高壓法蘭手動(dòng)截止閥簡(jiǎn)介
WJ41H波紋管截止閥簡(jiǎn)介