Case Summary
- Client Country: Guatemala
- Product: PPGI Coils in Four Colors
- Core Challenge: Precisely matching four specific RAL color numbers, meeting Z100 anti-corrosion standards, and completing FOB delivery within 15 working days.
- Our Value: We met the client’s requirements for color, zinc coating, and delivery time, successfully completing production within 15 working days and producing high-quality, high-performance PPGI coils.
Client Background
The client is a Guatemalan building materials trading company. The PPGI color-coated coils purchased will be used for customized production of a number of high-end commercial complexes and villa projects in the region, a project for which the client had won the bid.
The client’s core requirements focused not only on the performance of the base material but also on color accuracy, consistency, and overall brand image.


Communication Process
The customer contacted us through our website https://wanzhi-steel.com/ with clear requirements, directly specifying RAL color numbers, Z100, DX51D, and other technical specifications. We responded quickly, proactively providing our RAL standard color chart and confirming with the customer that the selected color was consistent with our standards. The customer’s requirements were as follows:
- Color Variety and Accuracy: We required the purchase of four different RAL colors, all of which were required to be identical to the standard color chart.
- Reliable Corrosion Resistance: We specified a “Z100” (zinc coating weight 100g/m²) coating and a “25/7” (25μm front, 7μm back) coating structure to ensure long-term durability in the local climate.
- Tight Delivery Time: The project had a fixed on-site arrival time of just 10-15 working days from order placement to product availability, placing a significant strain on the manufacturer’s production efficiency.


We are confident we can meet the above requirements and deliver the products our customers demand with guaranteed quality and quantity.After receiving the advance payment, our procurement, production, quality inspection, and packaging departments simultaneously initiated a contingency plan, ultimately completing delivery ahead of schedule.



The packaging process was carried out in full accordance with the confirmed plan, with two containers each loaded with 28 tons of cargo (Ral 8019 in one container alone, and the other three colors in another container mixed together to facilitate subsequent project-based allocation).


Purchase Details
Purchased products | PPGI Coils |
Thickness | 0.47mm |
Width | 1250mm |
Galvanized coating | Z100 |
Paint thickness | Front 25μm / Back 7μm (25/7) |
Material | DX51D |
Color and quantity | RAL 8019: 25吨 |
RAL 6028: 10吨 | |
RAL 9005: 10吨 | |
RAL 7016: 10吨 | |
Total quantity | 55 tons |
Product softness and hardness | Suitable for corrugated steel sheets |
Product coil weight requirements | Approximately 4 tons per coil |
Packaging requirements | Can be branded with the “Wanzhi” logo |
Maximum and minimum finished product weight ranges | Total weight of finished product not exceeding 56 tons (two containers) |
Product delivery date | Delivery within 10-15 business days |
Product transaction method and port | FOB Qingdao |
Payment method | 30% advance payment + 70% final payment before shipment |
Customer Feedback
During the communication process, the customer highly praised our product expertise and timely production. After receiving the goods, the customer pressed the PPGI coils and was impressed by both the formability and color integrity of the product.
Why Choose Us?
We are a professional PPGI coil manufacturer with over 14 years of production and export experience. We offer quick response times, efficient production capabilities, and professional technicians to ensure product quality. Furthermore, our factory is located in Binzhou, Shandong Province, close to Qingdao Port, ensuring fast delivery.