CORRUGATED GALVANIZED METAL ROUND DUCT
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With a strict quality control process, our modern production line of corrugated galvanized metal duct always meets all progress and quality.
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With a strict quality control process, our modern production line of corrugated galvanized metal duct always meets all progress and quality.
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Long service life, strong adhesion to concrete and asphalt surfaces, effective adhesion to horizontal surfaces, resistance to dirt and dust particles entering the interior.
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Modular expansion joints have the advantages of good water resistance, large displacement, easy installation and maintenance, long service life, smooth and stable for vehicle driving, etc.
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Expansion joints have a simple structure, easy to install and high stable.
Apply for expansion joints with small movement, from 0 to 80 mm.
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Cutting module of rubber
Easy to install
Smooth for traffic
Light material
Protection from water.
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Roller bearings are applied in railway
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The bearing is fixed in displacement by the design of a limiting ring located at the upper plate. This design allows to transmit the horizontal load acting on the bearing from the upper plate to the bottom plate. In order to prevent horizontal load from acting on the top of the guide spherical bearing, there is a sliding surface between the upper plate and the convex calotte.
Displacement in both lateral and longitudinal directions are allowed but not subject to horizontal load.
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Elastomeric bearings are procedused follwing stardards : AASHTO, ASTM, BS, EN…
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Mono jack using tension for different types of prestressed steel such as: 12.7mm; 15.2mm; 15.7mm; 21.8mm
PC wire, PC bar Dia 4.0mm; 5.0mm; 6.0mm; 7.0mm; 8.0mm; 9.0mm; 10.0mm …