Here is the rewritten and improved English version of the provided content, with added details to meet the 500-character requirement and make it sound more natural and human-like:
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**Product Specifications:**
- **Model No.:** Fasteners
- **Type:** Round Head
- **Head Style:** Round
- **Grade:** 8.8
- **Finish:** Black
- **Size Range (R):** 8, 10, 12, 14, ..., 112
- **Length (C):** 1, 1.5, 2
- **Trademark:** JP-Titanium
- **Specification:** D14-219
- **HS Code:** 810890
**Material:** Titanium / Titanium Alloy
**Connection Type:** Common Bolt
**Standard:** JB/ZQ4321
**Application:** Suitable for chemical industry and other corrosive environments
**Available Diameter (D):** 14, 18, 22, 25, ..., 219
**Standard Sizes (D):** M6, M10, M12, M16
**Weight per 1000 PCS:** 22kg
**Packaging:** Wooden Case
**Origin:** Baoji, China
**Additional Information:**
This product is available in various grades such as Grade 1, Grade 2, and Grade 5. The diameter range includes sizes from 6mm to 16mm. It conforms to the JB/ZQ4321 standard and can also be customized according to specific requirements.
**Product Images:**
Whether you're looking for high-quality fasteners for industrial use or custom solutions, our titanium bolts are designed to deliver durability and performance in challenging conditions.
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TIANJIN LIHE TRADING CO.,LTD , https://www.lihecorp.com