注:系列蝶閥結(jié)構(gòu)長(zhǎng)度及連接法蘭尺寸可根據(jù)用戶要求設(shè)計(jì)制造。
Note:The structural length and connecting flange size of butterfly valve
serles can be designed and manufactured as perusers'requirements.
D643H氣動(dòng)法蘭硬密封蝶閥主要零件材質(zhì)表 Form of Major Parts Materials