The Gao Yi resin roof tile product number is an identification code assigned by the manufacturer to each batch of tiles; this code includes relevant information such as specifications, batch number, and date. When purchasing or installing these products, many people are often confused by this code—that is, they are unsure exactly which model it corresponds to. Below, we will provide a clear explanation of how to interpret the code and the relevant rules.
How to Read Resin Tile Numbers
Typically, the serial number is printed on the back of the tile or on the side of the packaging box. Its specific format consists of three parts: the specification code, the lot number, and the year and month.
The first two digits represent the thickness or model number; the middle four digits represent the production batch for that year; and the last six digits are a combination of the year and month. When you pick up a tile and turn it over to check the printed code on the back, you should generally be able to match it to the corresponding number.
In actual work, you may encounter situations where the serial numbers have been washed away by rain. In such cases, the most reliable approach is to check the label on the packaging box directly, because the label on the box lists the complete serial number, specifications, dimensions, and color—information that corresponds one-to-one with each tile, making it unlikely to mix them up.

Gao Yi Resin Tile Numbering System
Specification codes are considered the most critical element in the numbering process. Gaoyi resin roofing tiles come in a variety of specific widths; for example, dimensions such as 150 mm, 200 mm, and 250 mm are common. At the same time, the thickness also varies within a certain range, specifically from 2.0 mm to 3.0 mm.
All relevant technical parameters are directly encoded and incorporated into the final code. For color identification, a two-letter combination is used. For example, the code ”GY” represents gray, while ”BL” represents blue. By looking at these letter codes, one can immediately identify the corresponding color information.
The lot number is a four-digit code that indicates which batch of this product was manufactured during the current year. This information is extremely important for future after-sales verification and is also crucial during incoming goods inspection. Therefore, it is essential to clearly indicate the batch number on the purchase order. The purpose of doing so is to prevent future disputes and attempts to shift blame resulting from the shipment of incorrect goods.
If you want to find the serial number, the most direct way is to contact Gao Yi’s customer service department, provide them with the code printed on your box, and they will be able to retrieve the corresponding production record.
If you break down the product number for Gaoyi resin roofing tiles, you’ll see that it’s actually a combination of three elements: specifications, batch number, and date. You just need to keep this basic logic firmly in mind, and you’ll never again find yourself in that confusing and chaotic predicament when verifying shipments, filling out documents, or looking up detailed information.
Keywords: Gaoyi Resin Roof Tiles, Product Number








