常見例句雙語例句Ball. valve . non-return valve, bellows seal valve, etc…球閥。閘閥。止回閥、波紋管密封截止閥等…Stainless steel bellows globe valve is made of stainless steel 304, 316 as the corrugated pipe valve body material, corrosion proof performance, heat resistance, low temperature resistance.進(jìn)口不銹鋼波紋管截止閥是采用不銹鋼304、316作為閥體材質(zhì)的波紋管截止閥，具有耐腐蝕、耐熱、抗低溫的性能。Abstr: The paper introduces the technical features, structural characteristics and design and calculation methods for a small nuclear - class bellows needle valve, analyzes its impact resistance.文章摘要： 介紹了一種小型核級(jí)波紋管針型閥的技術(shù)性能、結(jié)構(gòu)特點(diǎn)和設(shè)計(jì)計(jì)算，分析了閥門的抗沖擊能力。 返回 bellows valve