Here is the rewritten and improved English version of your content, with a total of over 500 characters and presented in a more natural, human-like style: ---
Model NO.: 4.50-12
Tire Hierarchy: 6PR
Customized: Customized
Cord Material: Nylon
Condition: New
Weight: 4.8kg
Rubber Content: 50%
Main Market: All Over The World
Quality: High Quality
Trademark: Century Fung Tire
Transport Package: Color Belt
Specification: 4.50-12
Origin: China
HS Code: 40114000

Motorcycle tire and inner tube

**FAQ:**
1. Are you a factory or a trading company?
Qingdao Century Fung Tire Co., Ltd. is a professional manufacturer of motorcycle tires and tubes.

2. Can I be your agent?
Yes, we welcome long-term cooperation and partnerships.

3. Is OEM available?
Yes, OEM is available. We have a professional design team to support your brand development.

4. Is the sample available?
Yes, samples are available for quality testing before bulk orders.

5. Are the products tested before shipping?
Yes, all our tires and tubes are fully inspected before delivery. Every batch is tested daily to ensure consistent quality.

6. What is your quality guarantee?
Our tires meet GB518-2007, GBT521-2012, and GBT13203-2007 standards. Our tubes meet GB/T7036-2007. We offer a 100% quality guarantee and take full responsibility for any quality issues.

7. What benefits can you bring?
Your customers will be satisfied with the quality, and they will place repeat orders with confidence.

**Payment Terms:**
Trade Terms FOB, CIF, CFR (CNF)
Payment Terms TT 30% deposit before production, 70% balance before loading.
Western Union / PayPal / MoneyGram LCL (small order)
L/C At Sight 30% TT + 70% L/C
100% L/C
**Sizes Available:**
8'/10' 12'/13'/14' 16' 17' 18' 19'/21'
3.00-8 3.00-12 2.50-16 2.00-17 2.50-18 70/100-19
3.25-8 3.50-12 275/300-16 2.25-17 4.60-18 100/90-19
3.50-8 3.75-12 325/350-16 2.50-17 2.75-18 90/90-19
4.00-8 4.00-12 110/90-16 2.75-17 3.00-18 3.00-19
3.00-10 4.50-12 3.00-17 3.25-18 110/90-19
3.50-10 5.00-12 300/325-17 3.50-18 2.75-21
4.00-10 130/60-13 300/350-17 4.10-18 3.00-21
5.00-10 225/250-14 110/80-17 90/90-18 90/90-21
90/90-10 2.75-14 4.00-17 100/90-18
110/90-10 3.00-14 100/90-17 110/100-18
120/90-10 110/90-17 110/90-18
130/60-10 100/80-17 4.60-18
**Our Advantages:**
1. High and stable quality: We maintain strict quality control from raw materials to finished products. Our modern lab ensures material quality.
2. Prompt delivery time: Located near Qingdao Port, we benefit from convenient transportation and fast shipping.
3. Quality warranty: Certified with ISO9001, CCC, CIQ, and SGS, ensuring top-quality performance.
4. Custom model design: We can create new molds based on your specifications.
5. Competitive pricing and ten years of export experience.
6. Excellent sales and after-sales service.
7. Attractive packaging that enhances product appeal.
OEM is available.
**Certifications:** 3C, DOT, ECE, ISO9001. --- Let me know if you'd like this formatted differently or optimized for a specific platform.

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