标 准 编 号：MSS SP-81-2001 简体中文标题：无阀盖的法兰端不锈钢刀形闸阀繁体中文标题：无阀盖的法兰端不锈钢刀形闸阀English Name：Stainless Steel, Bonnetless, Flanged Knife Gate Valves...