FAQs

Frequently Asked Questions

Real answers from Shanghai ZhuAi Building Material Co., Ltd. — factory profile, delivery time, quality control, panel length, paint coatings and how we run a project with you.

We are a professional factory with ISO and CE standards. OEM service is welcome.

Our sales team will confirm the schedule according to your order. For large orders, please communicate with our order management department in advance. Normally, delivery time is 5–15 days after we receive the deposit. Large-order delivery is arranged separately.

  1. Design quality: we think about possible problems in advance and provide a high-quality design solution.
  2. Raw material quality: we select qualified raw materials only.
  3. Production quality: precise manufacturing techniques, experienced workers and strict quality inspection.

Sandwich panels are shipped in 20'GP or 40'HQ containers. To make full use of container space, we recommend a panel length of no more than 11.8 m.

Service life varies with the zinc coating, paint system and project environment. Tell us your application (industrial, coastal, cold room, etc.) and we will recommend a suitable coating.

PE (polyester) coating is the most widely used paint for color-coated steel coils. It offers good overall performance and high cost efficiency.

  1. Send us your project details and requirements.
  2. We design accordingly, free of charge.
  3. Please check the drawings. If anything is not right, we revise until you confirm.
  4. Finally, we can make the deal on Alibaba.com with Trade Assurance.

Still Have Questions?

Send your product type, specifications and quantity through the Contact section. We reply within one business day.

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