+ Diameter: D= 0.3-3m
+ Length: L=1m-2.5m
– Technology of centrifugal rotation combined with vibration: France
– Vibration technology: USA, Germany, Denmark
– Core vibration technology: Germany, Denmark.
3. Materials: 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 clamping technology for 60-ton vehicles with factory certificates.
+ Steel: Imported from abroad or Thai Nguyen steel.
+ Stone: is a joint venture stone with Japan that always ensures the composition of grains, mars as well as standard sizes.
+ Sand: Use 100% Viet Tri golden sand.
– Concrete grade of AMACCAO Sewer Pipe is designed with grade 300 to ensure durability, permanent water.
– Steel core is designed for standards by the Institute of Transport Science and Technology.