气管阀 产品编号 41239000 EAN编码 4005176280399 颜色 镀铬 下载规格 Product main features type HB 垂直安装 for intrinsic safety against backflow according to DIN 1988.100 and DIN EN 1717 高仪持久表面 Technical Product Information 尺寸图 CAD数据 3D 图形交换格式-数据
