For the convenience of work, our company offers working procedures and payment methods for all customers:
Working process:
Consultancy → Surveying → Drawing → Quotation → Contract → Construction → Payment.
Directly – By phone – By Email
Payment methods:
For orders in Hanoi city:

Shipping fee: free
Money: Payment 100% as soon as we ship to the project, customers check the product.
Installation fee (if any): Pay 100% right after construction is completed.
For customers in other provinces and cities will include additional shipping costs (we will quote specific when the customer signed a contract)

Name tk: GTB Vietnam Co., Ltd

Tk: 1912 99 44 11 70 11 at Techcombank – Dong Do Branch – Hanoi.

Content: Customer … ..payment of contract number …

All our products are warranted from 1 to 3 years. During the warranty period, the error caused by the manufacturer will be replaced or repaired free of charge. The specific warranty period is indicated on the warranty card and stamp.