COLLAR PACKER

摘要

use: used u0434u043bu00a0 u043fu0440u043eu0432u0435u0434u0435u043du0438u00a0 u0438u0437u043eu043bu00a0u0446u0438u043eu043du043du044bu0445 works in u043du0435u0444u0442u00a0u043du044bu0445 and gas wells in the process of u0443u0433u043bu0443u0431u043bu0435u043du0438u00a0 through several exhaust the aquifers, with u043bu043eu0436u0435u043du043du044bu0445 porous rock.the essence of the u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0: improved functionality while reducing of hydrodynamic strikes at the gun in the process of u043fu0430u043au0435u0440u043eu0432 kee u0434u043eu0441u0442u0438u0433u0430 u0435u0442u0441u00a0 what's a hollow barrel is equipped with a membrane and implemented with additional n u043eu0442u0432u0435u0440u0441u0442u0438u00a0u043cu0438 at different u0443u0440u043eu0432u043du00a0u0445, u0441u043cu0435u0449u0435u043du043du044bu043cu0438 productive use in the district scientific research institute, and the u043eu0442u0432u0435u0440u0441u0442u0438u00a0 are interchangeable nozzles.and the upper casing is in the original position. 1 il. eat with