# HONGTONG

> HONGTONG is China manufacturer & supplier who mainly produces Enameled Wire, High Frequency Leeds Line, Extruded Leeds Line with years of experience. Hope to build business relationship with you.

## Contact Us
- [Phone](tel:+86-13805777951): +86-13805777951
- [Tel](tel:+86-571-88780757): +86-571-88780757
- [Mail](mailto:liyishen@htdgkj.com): liyishen@htdgkj.com

## Social Media
- [Facebook](http://www.facebook.com)
- [Linkedin](http://www.linkedin.com)
- [Twitter](https://twitter.com)
- [Youtube](https://www.youtube.com)
- [Instagram](https://instagram.com)

## Website Language Versions
- [English](https://www.htdgkj.com): Enameled Wire, High Frequency Leeds Line, Extruded Leeds Line Manufacturer & Supplier - HONGTONG
- [Chinese](https://cn.htdgkj.com): 漆包线, 绞线, 膜包线, 丝包线, 挤出线 – 杭州弘通线缆有限公司

## Website Navigation
- [Home](https://www.htdgkj.com/index.html): Home
- [About Us](https://www.htdgkj.com/aboutus.html): About Us
    - [About Us(HT)](https://www.htdgkj.com/about-us-ht.html): About Us(HT)
    - [Gallery](https://www.htdgkj.com/gallery.html): Gallery
- [Factory area](https://www.htdgkj.com/video.html): Factory area
- [Products](https://www.htdgkj.com/products.html): Products
    - [Enameled Wire](https://www.htdgkj.com/Enameled-Wire-pl41981897.html): Enameled Wire
    - [Combined Insulation Wire](https://www.htdgkj.com/Combined-Insulation-Wire-pl47189897.html): Combined Insulation Wire
- [Support](https://www.htdgkj.com/Support.html): Support
    - [Download](https://www.htdgkj.com/download.html): Download
    - [FAQ](https://www.htdgkj.com/faqlist.html): FAQ
- [News](https://www.htdgkj.com/news.html): News
- [Contact Us](https://www.htdgkj.com/contactus.html): Contact Us

## Product Category
- [Enameled Wire](https://www.htdgkj.com/Enameled-Wire-pl41981897.html): Enameled Wire
    - [Enameled Copper-clad Aluminum Wire](https://www.htdgkj.com/Enameled-Copper-clad-Aluminum-Wire-pl03563676.html): Enameled Copper-clad Aluminum Wire
    - [Polyurethane Enameled Copper Round Wire](https://www.htdgkj.com/Polyurethane-Enameled-Copper-Round-Wire-pl40981897.html): Polyurethane Enameled Copper Round Wire
    - [Polyester Imine Enameled Copper Round Wire](https://www.htdgkj.com/Polyester-Imine-Enameled-Copper-Round-Wire-pl48871897.html): Polyester Imine Enameled Copper Round Wire
    - [200 Grade Polyamide Imide Composite Polyester Imine Enameled Copper Round Wire](https://www.htdgkj.com/200-Grade-Polyamide-Imide-Composite-Polyester-Imine-Enameled-Copper-Round-Wire-pl47871897.html): 200 Grade Polyamide Imide Composite Polyester Imine Enameled Copper Round Wire
    - [220 Grade Polyamide Imide Enameled Copper Round Wire](https://www.htdgkj.com/220-Grade-Polyamide-Imide-Enameled-Copper-Round-Wire-pl46871897.html): 220 Grade Polyamide Imide Enameled Copper Round Wire
    - [240 Grade Aromatic Polyamide Imide Enameled Copper Round Wire](https://www.htdgkj.com/240-Grade-Aromatic-Polyamide-Imide-Enameled-Copper-Round-Wire-pl48189897.html): 240 Grade Aromatic Polyamide Imide Enameled Copper Round Wire
- [Combined Insulation Wire](https://www.htdgkj.com/Combined-Insulation-Wire-pl47189897.html): Combined Insulation Wire
    - [Served Litz Wire](https://www.htdgkj.com/Served-Litz-Wire-pl46189897.html): Served Litz Wire
    - [Taped Litz Wire](https://www.htdgkj.com/Taped-Litz-Wire-pl43189897.html): Taped Litz Wire
    - [Profiled Litz Wire](https://www.htdgkj.com/Profiled-Litz-Wire-pl44189897.html): Profiled Litz Wire
    - [Litz Wire](https://www.htdgkj.com/Litz-Wire-pl45189897.html): Litz Wire
    - [Extruded Litz Wire](https://www.htdgkj.com/Extruded-Litz-Wire-pl42189897.html): Extruded Litz Wire

## FAQ
- **Q: How are the temperature resistance grades of enameled wires classified? And which scenarios are suitable for different grades?**
  A: Common temperature resistance grades are as follows: - 130°C (Class B): It is a general-purpose type, widely used in household appliances and small motors. - 155°C (Class F): Applicable to industrial motors and transformers. It has better heat resistance compared to Class B. - 180°C (Class H): Mainly used in high-temperature working environments such as high-temperature motors, transformers, etc. - above 180°C (Class C): It is suitable for special electronic devices in extremely high - temperature and high - pressure environments, such as motors and transformers in the aerospace and nuclear industries.
- **Q: How to select enameled wires for high-frequency transformers?**
  A: The key indicators are as follows: - Low skin effect: It is recommended to choose litz wires or multi-strand thin wires. - Low dielectric loss: Enameled wires with polyurethane or polyesterimide paint can be selected. - Self-adhesiveness: It helps to reduce the impregnation process.
- **Q: Do the enameled wires meet the RoHS environmental protection standard?**
  A: Yes, the products have passed the EU RoHS certification, and the certificate number is E326617.
- **Q: What is the wire diameter range of the enameled wires?**
  A: The conventional wire diameter range is from 0.03mm to 0.6mm. Non-standard customization is also supported.