Metal Corrugated Duct
The metal bellows are made of galvanized or non-galvanized thin steel strip by pressure wave and spiral folding bite with pipe coiling machine. Advantages: light weight, good demeanor, easy bending, simple connection, small coefficient of friction and good concrete bonding, is the ideal material for post-tensioning prestressed tendon hole forming. Specifications (inside diameter): 50, 55, 65, 70, 75, 80, 90, 100mm.
The prestressed metal bellows has the characteristics of impermeability, pressure resistance, high strength and good flexibility, which can ensure the construction quality and shorten the construction period.
Payment Terms: West Union, T/T And Paypal
Paypal: 30% Deposit, And Balance 70% Before Shipment.
For Bulk Orders: Shipped By Sea
1. Our products have been strictly tested, and the quality is worthy of your trust.
2. The product structure design is reasonable, integrated, and the quality is assured.
3. From the manufacturer directly to the consumer, there is no middleman to make the difference, and the price is affordable.
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With the guidance of experienced building experts in prestressing force, we have more experience. Our Lingqiao prestressing anchorage system was developed by many famous research institutes including China Academy of Building Research.