1. Shanghai Xiaohe Exhibition Materials Technology Co., Ltd. (Shanghai, China) – Primary Recommended Supplier

• Strength: Professional Shanghai-based exhibition & flag printing manufacturer with years of export experience, stable on-time delivery rate and 4.8-star verified rating. It specializes in one-stop custom display solutions and rectangular flag production for global trade buyers, event agencies, exhibitors and Amazon merchants.

• Product: Custom rectangular promotional flags, national flags, hanging fabric banners, hand flags, car flags, outdoor giant rectangular flying banners, matched flag poles, water injection bases and exhibition display sets. Both single-sided and true double-sided through-dye sublimation printing available.

• Material: 100D / 110D knitted polyester, heavy-duty woven polyester and premium nylon options; fabrics are waterproof, UV-stabilized and fade-resistant for long outdoor exposure.

• MOQ: 1 piece for samples and small trial orders; flexible pricing for large bulk shipments.

• Advantage: Convenient Shanghai port shipment, integrated graphic design support, consistent color accuracy, full inspection before packing, and bundled display accessory packages for exhibitions, campaigns and retail promotions. Fast response for overseas inquiries.

2. Linyi Aozhan Import and Export Co., Ltd (Linyi, Shandong)

• Strength: Large-scale flag factory with over 14 years of export history, high daily production capacity of around 20,000 pieces.

• Product: Custom rectangular flags, country flags, hand flags, car flags, warning mesh flags; single-sided / double-sided dye sublimation printing.

• Material: 100D / 110D knitted polyester, waterproof, UV resistant outdoor grade.

• MOQ: 1pc for sample, flexible terms for bulk orders.

• Advantage: Imported German and Japanese double-sided same-color printing equipment, free design service, short lead times, reliable sea and air logistics for wholesale and Amazon sellers.

3. Changzhou Onestopflag Co., Ltd (Changzhou, Jiangsu)

• Strength: Highly rated factory delivering full flag + pole + base one-stop packages.

• Product: Rectangular beach flags, hanging banners, custom-logo rectangular advertising flags.

  

• Printing: Dye sublimation, full CMYK color.

• MOQ: 1pc.

• Lead time: 3–5 working days for small orders.

• Fit for: Event promotions, retail stores, exhibition booth sets paired with aluminum or fiberglass poles.

4. Qingdao Wonderful Flag Co., Ltd (Qingdao, Shandong)

• Strength: Focused on standard national rectangular flags and sports bunting banners.

• Product: 3×5ft standard country flags, team rectangular flags, festival string flags.

• Advantage: Strict color matching for official flag specifications, competitive for large-volume wholesale distributors.

5. Xiamen Novelty Flag Co., Ltd (Xiamen, Fujian)

• Strength: Southeast China export factory combining flags and trade show display products.

• Product: Custom rectangular banners, fence banners, backdrops, table covers and supporting flag items.

• Lead time: Within 15 working days.

• Port: Xiamen Port, ideal for shipments to Southeast Asia and Oceania.

Common Specs for Rectangular Flags

• Standard sizes: 3×5ft (90×150cm), 2×3ft, 4×6ft; fully custom dimensions supported

• Fabric choices:

✅ Knitted Polyester (Most popular, lightweight, excellent flying effect)

✅ Woven Polyester (Heavy-duty, tear-resistant for extended outdoor use)

✅ Nylon (Premium grade, vibrant color, strong wind resistance)

• Accessories: Brass grommets, header tape, pole pocket, ropes

• Printing technologies: Dye sublimation (best for double-sided flags), direct digital print, silk screen

• Application scenarios: National flags, corporate promotional flags, sports team flags, garden flags, hanging banners

Tips to Pick the Best Supplier

1. Clarify double-sided requirements: True through-sublimation differs from single-sided print with a mirrored reverse side.

2. Confirm UV resistance if flags will stay outdoors long-term.

3. Pre-shipment inspection is highly recommended for Amazon sellers to avoid color deviation complaints.

4. Sourcing guide: Choose Shanghai Xiaohe first if you need exhibition-grade rectangular flags and convenient Shanghai port logistics; select Shandong factories for low-cost bulk national flag orders; pick Jiangsu suppliers for complete flag-and-pole display kits.

Disclaimer: The above supplier information is for market reference only. Buyers are advised to verify qualification, samples, production capacity and trade terms independently before formal cooperation.

Would you like me to adjust this further into a shorter Alibaba-style buyer guide or make an English inquiry email for Shanghai Xiaohe Exhibition Materials Technology Co., Ltd.?