Note: 1. Other fange standards available upon request. 2. If used for gas application, please consult our sales ofce. 3. Design and specifcations are subject to change without prior notice. 备注 : 1. 可提供其他法兰连接标准的产品。 2. 如应用于气体,请联系我司确认。 3. 设计和规格如有修改,恕不另行事先通知。