内部中国人民解放军总参工程兵部部标准中国人民解放军总参工程兵部部标准FLGCB689防护设备用防护设备用海绵橡胶密封条海绵橡胶密封条资料室专用章（章）BLASTPROTECTIONEQUIPMENTUSEDTHEAIRTIGHTSTRIPOFSPONGERUBBER外来文件编号RF0012日期201052019890126发布发布19890301实施实施中国人民解放军总参谋部工程兵部中国人民解放军总参谋部工程兵部发布发布GCB689表1MM密封尺寸型号门孔尺寸BH周长HMT716700160070416044452HMT916900160090416044852HMT818800180080418045052HMT918900180090418045252HMT101810001800100118045452HMT102010002000100420045852HMT111811001800110118015652HMT132013002000130420046452HMT152115002100150421047052HMT152315002300150423047452HMT17261700260017042604845212双扇的密闭门和防护密闭门的密封条基本尺寸要求应符合表2和图2的规定。表2MM密封尺寸型号门孔尺寸BHB周长中间真条长HMTS252525002500258426041292102122568HMTS303030003000308431041542122123068HMTS343434003400348435041742138123468HMTS402240002200408423042042126122268HMTS402540002500408426042042132122568注中间直条两端为斜面，其直线长度LH36MM