We are a leading manufacturer, exporter, and wholesaler of high-quality industrial mechanical seals and related pump products, headquartered in Ningbo, China. Equipped with our own factory and a dedicated international sales team, we deliver reliable sealing solutions to clients worldwide.

Product Range

‌Spring & Bellow Seals‌

• Water Pump Mechanical Seal
• Single Spring Seals
• Balanced & Unbalanced Spring Seals
• Multi-Spring Balanced Seals
• Conical Spring Seals / Single Conical Helical Spring Seals
• Rubber Bellow Seals
• Metal Bellow Seals / Metallic Bellow Seals
• Elastomer Bellow Seals
• PTFE Bellow Externally Mounted Seals

‌Special Application Seals‌

• Externally Mounted Seals
• Cartridge Balanced Seals
• Dry Running Reverse Balanced Seals
• Double-Acting Unbalanced Seals for Agitators
• Air Conditioning Compressor Seals
• Automotive Cooling System Seals

‌Pump-Specific Mechanical Seals‌ — fully compatible with:
Flygt, Grundfos, APV, Grindex, Fristam, ABS, Allweiler, EMU, GEA, Tuchenhagen, Godwin, Hidrostal, Hilge, Johnson, Lowara, Waukesha, Vogelsang, and more.

We also manufacture seals based on customer-supplied samples or drawings, and provide custom design services tailored to your specific operating conditions.

In addition to mechanical seals, we supply pumps and pump parts including lobe pumps, compound & homogenizing pumps, homogenizing & emulsifying pumps, and more.

Frequently Asked Questions (FAQ)

‌Q1: Are you a factory or a trading company?‌

We are a ‌factory-direct manufacturer‌ with our own in-house international sales team to provide full trade services. This allows us to combine competitive pricing with professional export support.

‌Q2: Can I request samples before placing an order?‌

Absolutely. Samples are available upon request and are generally ‌provided free of charge‌. You only need to cover the shipping cost.

‌Q3: Where is your factory located? How can I arrange a visit?‌

Our factory is based in ‌Ningbo, China‌. You may fly directly to Ningbo Lishe International Airport (NGB) or to Shanghai Pudong/Hongqiao International Airports (PVG/SHA). We warmly welcome all clients, both domestic and overseas, to visit our facility — please contact us in advance and we will be happy to assist with your travel arrangements.

‌Q4: How does your factory ensure product quality?‌

Quality is our top priority at every stage of production — from raw material inspection and in-process control to final testing before shipment. Our factory is ‌ISO 9001 certified‌, and all products are manufactured under strict quality management procedures to guarantee consistent performance.

‌Q5: What is your standard lead time?‌

Generally ‌10–20 working days‌ after receipt of advance payment. Exact lead time may vary depending on order quantity and product specifications.

‌Q6: What payment terms do you accept?‌

• For samples and small shipping fees: ‌PayPal‌ or ‌T/T‌ (Telegraphic Transfer).
• For bulk orders: ‌T/T at sight‌.

‌Q7: Do you offer OEM / ODM services?‌

‌Yes.‌ We provide comprehensive OEM and ODM services across our entire product range, including custom branding, packaging, and engineering design to meet your specific requirements.

‌Q8: Do you also supply pumps and pump parts?‌

‌Yes.‌ Beyond mechanical seals, we offer a variety of pumps and pump components — such as lobe pumps, compound & homogenizing pumps, and homogenizing & emulsifying pumps. Please contact us for details.