Here is a rewritten and improved version of your content in English, with more natural and professional phrasing, and extended to meet the 500-character requirement:
---
**Product Specifications:**
- **Model No.:** DIN 3570
- **Delivery Lead Time:** 30–45 Work Days
- **Trademark:** YPH
- **Transport Package:** 25kg per pallet, 900kg per pallet, 36 boxes per pallet
- **Specification:** M3–M100
- **Origin:** Ningbo, Zhejiang, China
- **HS Code:** 7318160000
**More About the Product:**
| Standard | U Bolt DIN 3570 |
|-----------------|------------------|
| Grade | 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9 |
| Size | M3–M100 |
| Surface | Black, Zinc-plated, HDG, Dacromet, etc. |
| Material | Carbon Steel, Alloy Steel, Stainless Steel, etc. |
| Packaging | 25kg per box, 36 boxes per pallet, 900kg per pallet |
| Sample | Free samples available |
**Our Advantages:**
1. Top Quality Control
2. Competitive and Attractive Pricing
3. Professional and Experienced Company
4. OEM Accepted
5. Shortest Delivery Time
6. Best Service for You
**Main Products:**
- **Bolts:** DIN 933, DIN 931, DIN 419, DIN 558, DIN 7990, DIN 6922, ASME/ANSI B18.2.1, ASME/ANSI B18.2.3.1M, GB, BSW, ISO Hex Bolts, Carriage Bolts, Heavy Hex Bolts, Flange Head Bolts, Anchor Bolts, etc.
- **Rods:** Threaded Rod DIN 976, Threaded Bar DIN 975, Stud Bolts, B7 Stud Bolts, etc.
- **Nuts:** DIN 934, Heavy Hex Nuts, 2H Nuts, DIN 555, Flange Nuts, Cap Nuts, Nylon Nuts, etc.
- **Screws:** Hex Screws, Self-Drilling Screws, Self-Tapping Screws, Drywall Screws, Pan Head Screws, Button Head Screws, Machine Screws, Chipboard Screws, Furniture Screws, Wood Screws, etc.
- **Washers:** Flat Washers, Spring Washers, Lock Washers, Square Washers, Spring Lock Washers, Plain Washers, etc.
**About Us:**
Ningbo Yi Pian Hong Fastener Co., Ltd. is a professional fastener manufacturer and exporter based in China. We are a member of the China Fastener Association and have been specializing in the production of high-strength bolts, nuts, and threaded rods for many years. With an annual production capacity of 30,000 tons and an annual turnover of 300 million RMB, our products comply with international standards such as ANSI/ASTM, DIN, BS, ISO, GB, JS, and more. Our products are widely exported to Europe, North America, the Middle East, and Southeast Asia. We are well-known for our high-quality products and excellent service.
**FAQ:**
Q1: Are you a factory or trading company?
A: We are a specialized fastener supplier offering competitive prices.
Q2: How can I get the product shipped to my country?
A: We offer shipping by sea, air, or express (DHL, FedEx, EMS, UPS, etc.).
Q3: How do you ensure safe long-distance transportation?
A: We have professional packing teams that ensure all packages are safely handled.
Q4: Do you have enough stock?
A: Yes, we maintain sufficient inventory and offer 24/7 service.
Q5: Can you produce non-standard items?
A: Yes, please send your drawings to our sales representative for a quotation.
Q6: Do you have a published price list?
A: No, due to market fluctuations, we provide flexible pricing based on your needs.
Q7: Do you offer discounts?
A: Yes, for large orders. However, we believe our sales team offers the best possible price.
Q8: Do you provide samples?
A: Yes, free samples are available. However, we don’t cover express shipping costs.
Q9: What is the delivery time?
A: It depends on the order quantity—standard items take about 20–40 days, and non-standard items take 35–60 days.
Q10: What is the payment term?
A: T/T or L/C are preferred. Western Union is also accepted for small payments like sample shipping fees.
**Customized Products:**
If you have drawings or samples, we can manufacture according to your requirements. Welcome to contact us early.
Your choice is our pleasure.
Your satisfaction is our goal!
**Contact Us:**
Tel: +86-574-86662856
Website: [www.yphfasteners.com](http://www.yphfasteners.com)
Cold&Heat Model
JIANGMEN PRO-TAYLOR REFRIGERATION CO., LTD. , https://www.protaylor.com