About Us
Ningbo Kaxite Sealing Materials Co., Ltd. is a professional sealing manufacturer based in Ningbo, Zhejiang, China. With 10+ years of experience, we supply spiral wound gaskets, metal gaskets, non-metallic gaskets, braided packings, compression sheets, and PTFE seals to customers in 100+ countries.
ISO 9001:2015 certified and ASME B16.20 compliant, Kaxite offers in-house R&D, strict quality control, and full OEM/ODM support. From oil & gas to chemical and power generation, we deliver reliable sealing solutions that reduce downtime and create lasting value for customers worldwide.


China Sealing Solutions Manufacturer – Gaskets, Packing & PTFE Seals
Trusted supplier of spiral wound gaskets, braided packing, compression sheets, and PTFE seals for oil & gas, chemical, power generation, and marine industries. 10+ years of engineering expertise with global export to 100+ countries.
Sealing Solutions for Critical Industries
Choose your sector – we deliver the right sealing material and product.
Oil & Gas
Spiral wound, ring joint & kammprofile gaskets
Chemical Processing
PTFE, graphite & non-asbestos gaskets
Power Generation
High-temp sealing up to 650°C
Marine & Shipbuilding
Packing and gaskets for seawater, fuel & exhaust systems
Food & Pharma
FDA-compliant PTFE, silicone & rubber sheets
General Industrial
Custom sealing components for pumps, valves & compressors
Why Industry Leaders Choose Kaxite
- ✅ ISO 9001:2015 Certified
- ✅ 10+ Years of Sealing Manufacturing
- ✅ In-house R&D and Testing Lab
- ✅ Supplying to 100+ Countries Worldwide
- ✅ ASME B16.20, API 607, NACE MR0175 Compliant
- ✅ Custom Engineering & OEM/ODM Capabilities
Frequently Asked Questions
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Frequently Asked Questions
Everything you need to know about our sealing solutions and services
What is the maximum diameter of spiral wound gasket you can produce?
Do you provide gaskets compliant with ASME B16.20?
What is your lead time for custom orders?
Can you produce gaskets with inner and outer rings?
Do you offer free samples?
What certifications does Kaxite hold?






















