100psi 20inch ultra large diameter TPU layflat hose ship to Southeast Asia market

A new customer in Southeast Asia market need a super Ultra large diamater TPU layflat hose for water delivery in Hydroelectric project,the size is 20inch (DN500mm) . It is our first time to produce the big size in 20inch, as normally in the market is from 2inch to 20inch.The customer need 20,000 meters one time,and next order will be 52,000 meters. It is a very big project from the local government.