12-13 more
11-30 more
11-14 more
11-09 more
10-23 more
10-16 more
10-07 more
10-01 more
product
閥門是一種(zhǒng)管道附(fù)件,用(yòng)于打開和(hé)關閉(bì)管道(dào),控制(zhì)流向(xiàng),調節和控(kòng)制輸(shū)送介(jiè)質的(de)參數(溫(wēn)度(dù)、壓力(lì)和流(liú)量)。根據它(tā)們的功能,它們(men)可以分為(wéi)截止(zhǐ)閥、止回閥(fá)和調(diào)節閥。