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WORKING HEAD OF MANUAL FAIR-FIGHTING HOSE
WORKING HEAD OF MANUAL FAIR-FIGHTING HOSE
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机译:手动软管的工作负责人
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摘要
FIELD: fir- fighting engineering. SUBSTANCE: working head has a nozzle mounted inside a housing. The nozzle has a movable portion wherein the central space for suppling water is mounted. The movable portion is connected with the fixed portion to form two control spaces connected with water supplying spaces. EFFECT: enhanced reliability. 3 dwg
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