BNG-C-G1/2*700防爆挠性连接管BNG-B-G20*1000
面议BNG-C-G1/2*700防爆挠性连接管BNG-B-G20*1000
面议BNG-C-G1/2*700防爆挠性连接管BNG-B-G20*500
面议BNG-C-G1/2*1000防爆挠性连接管BNG-B-G15*500
面议BNG-A-G3/4*1000防爆挠性连接管BNG-B
面议BNG-G3/4*1000防爆挠性管DN20*1000防爆挠性连接管
面议BNG-G3/4*700防爆挠性管DN20*700防爆挠性连接管
面议NGD-G3/4*500防爆挠性管DN20*500防爆挠性连接管
面议BNG-G1/2*1000防爆挠性管DN15*1000防爆挠性连接管
面议BNG-G1/2*700防爆挠性管DN15*700防爆挠性连接管
面议NGD-G1/2*500防爆挠性管DN15*500防爆挠性连接管
面议BNG-15*1000防爆挠性管DN15*1000防爆挠性连接管
面议BNG-15*700防爆挠性管DN15*700防爆挠性连接管
面议