HDD Drilling Machine Rotary Shaft Swivel Seal for XCMG/Drillto/Dw/Txs/Goodeng Machine/Dilong/Vermeer/Zoomlion/Terra/Ditch Witch/Toro/Huayuan Non-excavation horizontal directional drilling rig rotary water seal assembly V-shaped cloth seal Goodeng, XCMG, Hengtian Jiuwu and other brands of non-excavation horizontal directional drilling rig rotary water seal assembly V-shaped cloth seal Product alias: rotary water seal assembly Applicable industry: construction machinery Product use: water supply