2.0
HG/T 20592-2009
法兰 WN 32(B)-25 M
施工图
在线查询/打印: https://www.hgcad.com/@%C3%83%C6%92%C3%82%C2%A6%C3%83%E2%80%9A%C3%82%C2%B3%C3%83%C2%A2%C3%A2%E2%80%9A%C2%AC%C3%82%C2%A2%C3%83%C6%92%C3%82%C2%A5%C3%83%C2%A2%C3%A2%E2%80%9A%C2%AC%C3%82%C2%A6%C3%83%E2%80%9A%C3%82%C2%B0WN32(B)-25M