Shenzhen Defulong Technology Co., Ltd., a professional manufacturer of welding machines, has spent 9 years in persistent pursuit and unremitting efforts to become a leading domestic brand with significant international influence in welding power sources and accessories.

We operate both welding machine and torch factories, complemented by a dedicated Professional Trading Company to manage export business.

With 'Customer first and Quality life' as our core principle, our professional R&D and sales teams are highly experienced in OEM and ODM export business. We can meet both Asian and European quality standards, including RoHS compliance and CE certification for most products. We offer tailored welding solutions for various conditions like high/low voltage, high/low temperature, and heavy-duty or DIY markets.

After years of relentless pursuit, we have evolved into a globally influential enterprise in welding power sources and accessories. Our products have reached over 70 countries across five continents, including North America, Europe, the UK, Japan, India, and Southeast Asia. We maintain product reserves in numerous countries to ensure prompt delivery to our customers.

The company owns the HITBOX brand, registered in North America, Europe, and Southeast Asia. Our main products include portable DIY welding machines, all-digital MIG, MMA, and TIG welders, plasma cutting machines, and multi-function precision submerged arc welding machines. These machines support single-phase 120V, 110V/220V, 220V±15%, and three-phase 380V~415V. They are ideal for household DIY, steel structure, petroleum, shipbuilding, chemical industry, electric power, and metallurgy. Capable of welding and cutting carbon steel, stainless steel, aluminum, and more.

Guided by the principle of 'Customer first, quality for life,' our goal is to deliver high-quality products. We strive to offer the most cost-effective, high-end solutions and superior services to satisfy customer needs.