+ Diameter: D= 0.3-4m.
+ Length: L=1-2.5m
– Using the technology of vibration pressing of Thailand – Germany: cast with dry concrete and use high-strength cold-rolled steel.
+ Cement: Imported 100% directly from Nghi Son and Tam Diep factories with Japanese and Danish technology, is bulk cement using lead clamp technology for 60-ton vehicles with factory certificates.
+ Steel: Imported from abroad or Thai Nguyen steel.
+ Stone: is a joint venture with Japan that always ensures the composition of grains, mars as well as standard sizes.
+ Sand: Using Viet Tri yellow sand 100%.
– The concrete grade of Amaccao Pipe is designed with grade 300 to ensure its durability and permanent water.
– Steel core is designed for standards by the Institute of Transport Science and Technology.