Combination wrench for cylinders. Probably no industrial sector or agricultural workshop now can not do without gas welding or cutting metal. Widely used and effective method such as welding in protective atmosphere of carbon dioxide. In all these cases, the workplace gas delivered in cylinders; and to connect them to the system burners, gas welder turns into a kind of housekeeper: he needs to do this up to five different wrenches and valve keys. Young innovators Dmitrov excavator plant, the participants NTTM-78, used instead of the ligament only one key. They made it universal, like the Bicycle: on the flat body there are all the sizes previously used five keys. Versatile tool is very compact and easy to use; small size: 300Х90Х13 mm.
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