选型指南：型号管通径（DN）接头管螺纹（G）长度（mm）***小弯曲半径（mm）防爆标志BNG-700×G1/2151/270080ExdIIBNG-1000×G1/2151/2100080BNG-700×G3/4203/4700110BNG-1000×G3/4203/41000100BNG-700×G1251700145BNG-1000×G12511000145BNG-700×G11/43211/4700180BNG-1000×G11/43211/41000180BNG-700×G11/24011/2700210BNG-1000×G11/24011/21000210BNG-700×G2502700250BNG-1000×G25021000250BNG-700×G21/27021/2700350BNG-1000×G21/27021/21000350BNG-700×G3803700400BNG-1000×G38031000400BNG-700×G41004700500BNG-1000×G410041000500)