How we work
From enquiry to warranty — nine steps. At each one it is clear what we do and what you get.
Enquiry
A call, WhatsApp or the form on the website. The enquiry gets a number — we find the project by it at any step.
Enquiry number
Series selection
For the city, storeys and tasks of the project — from the manufacturer's catalogue. This is an HTA recommendation; the final choice is yours.
A series for the project
Survey and opening schedule
We measure the openings or take the schedule from the project. The signed schedule is the basis of the calculation.
Opening schedule
Commercial offer
Specification and price from the schedule, line by line.
Offer valid for 10 days
Contract and prepayment
A contract with a Kazakhstan LLP, payment by invoice. We place the order with the manufacturer after prepayment.
Contract and invoice
Manufacturing in China
ZHONG-YAN systems are manufactured in China — to the specification you signed.
Products to specification
Cutting profile to size Crimping the thermal break Profile in protective film 
Packed units before shipping
Footage from production in China.
Delivery and customs
We ship to Kazakhstan and clear the import. Supply is split into batches to the installation schedule.
Batch supply
Installation
An installation contractor installs under contract. The project is handed over with a completion certificate.
Completion certificate
Warranty
HTA carries the warranty obligations to the client in Kazakhstan. The terms are set in the contract.
Warranty under contract
Who is responsible for what
Manufacturer
ZHONG-YAN, China
Aluminium window and door systems.
Representative in Kazakhstan
Hi-Tech Aluminium Products
Series selection, supply, documents and responsibility to the client in Kazakhstan.
Start with an enquiry
Send the city, storeys and opening schedule — or start with the one-minute selection.
