color 1 1米三层防爆进水管（送钢头）1 meter triple explosion-proof inlet pipe (send steel head)
color2 1.5米三层防爆管（送钢头）1.5 m three explosion-proof pipe (send steel head)
color3 2.0米三层防爆管（送钢头）2.0 m three explosion-proof pipe (send steel head)
color4 3米三层防爆管（送钢头）3 m three explosion-proof pipe (send steel head)
color5 5.0米三层防爆管（送钢头）5.0 m three explosion-proof pipe (send steel head)
color6 4米三层防爆管（送钢头4 m three explosion-proof pipe (send steel head