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International Trade Fair for Construction Machinery,
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Vehicles
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Earth-moving machines
Road
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Road construction and maintenance equipment/Pipe & cable laying equipment & tools
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Construction Equipment and tools, Formworks and Scaffolds
Construction equipment, tools and special systems/Formwork and scaffoldings
Mining, Extraction and Processing of Raw Materials
Mining, Extraction and Processing of Raw Materials
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Handling and processing concrete and mortar at construction sites/Production of Building Materials
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Transmission engineering, fluid technology and power generation units
Component and Service Suppliers
Accessories and spare parts/Services
Intelligent Management
Digital construction site and job safety/Test, measurement and process control engineering/Communication and navigation/Production process equipment
New power technologies
New power technologies
Construction Attachments and Hydraulic Hammers etc.
Hydraulic shears/Hydraulic grapples/Excavator buckets, loader buckets/Quick coupling systems/Grapples/Backhoes/Hydraulic hammers/Hydraulic cutters/Vibratory tools/Auger drives/Fork prongs/carriers/Telescopic pile leaders, fixed leaders

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Excavator Slewing Ring QNA730.22Z19
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Product Introduction
-Tooth surface and root quenching
-Gear accuracy: 11 (after quenching)
-Sealing strip used in excavator slewing ring
-Clearance: 0.04-0.16mm
Innovation : Moulding Milling for gear processing; Tooth surface roughness is 3.2 before tooth quenching; Process tooth edge chamfering together through forming milling blade to ensure consistency of tooth edge chamfering;
Self-made special