conventional open spring with lever
...带扳手式安全阀 Conventional / Balanced-Bellows with Lever 普通带扳手弹簧敞开式安全阀 Conventional Open Spring with Lever 先导式安全阀 Pilot Actuated Safety Valve ..
基于1个网页-相关网页
conventional open spring with lever
带杠杆的传统开式弹簧
以上为机器翻译结果，长、整句建议使用 人工翻译 。