Q1
How is LANGE different from standard aluminum folding doors on the market?
LANGE is an established aluminum door and window manufacturer in China with extensive experience in system design and manufacturing. We focus on precision manufacturing, customized solutions and quality control, supported by a 20,000㎡ production facility and a professional design and engineering team. Our products are developed for residential and architectural projects worldwide.
Q2
This is my first time buying from China. How does the process work?
No worries. We have over 20 years of export experience and provide professional support throughout the entire process. We guide you through order confirmation, design, production, quality inspection, shipment and delivery, keeping you informed at each stage.
Q3
Can the aluminum folding door be customized?
Yes. We offer customized solutions based on your project requirements, including door size, number of panels, opening direction, glass configuration, color, hardware, lock type and track system. Please provide the opening width and height, installation location and site photos, if available. Our team will recommend a suitable configuration based on your project.
Q4
What are your payment terms and accepted methods?
Our standard payment terms include T/T (30% deposit, 70% balance before shipment) and 100% irrevocable L/C at sight. We accept T/T (bank transfer), L/C at sight, credit card and other available online payment methods, subject to the specific order and payment platform. Other terms can be discussed depending on the order requirements.
Q5
How long does production take?
The lead time depends on door size, glass configuration, color, hardware, customization level and order quantity. Once the technical specifications and payment terms are confirmed, we will provide a clear production schedule. For customized projects, we recommend allowing sufficient time for production, quality inspection, packaging and international shipping.
Q6
What information do you need for a quotation?
To provide an accurate quotation, please send us:
- Opening width × height
- Quantity
- Door type and opening configuration
- Glass specification
- Color
- Hardware requirements
- Installation location / project country
- Site photos or drawings, if available
We will then recommend a suitable configuration and prepare a quotation for your project.