Shenzhen Defulong Technology Co., Ltd is a premier manufacturer of welding machines. With 9 years of unwavering commitment and relentless effort, we have emerged as a leader in the domestic market and gained significant international influence in the realm of welding power sources and accessories.

We operate both welding machine and torch factories and run a Professional Trading Company dedicated to handling our export business efficiently.

Putting the customer first and prioritizing quality are our core principles. Our professional R&D and sales teams excel in OEM and ODM collaborations for export. We meet both Asian and European quality standards, including RoHS. Most of our products have received CE certification. We provide tailored welding solutions to suit various conditions such as high/low voltage, high/low temperature, and heavy-duty or DIY markets.

Thanks to persistent efforts, we have become a globally influential enterprise in welding power sources and accessories. Our main products are exported to over 70 countries across five continents, including North America, Europe, the UK, Japan, India, and Southeast Asia. We maintain substantial product reserves in many countries to ensure swift delivery to our customers.

Our company owns the HITBOX brand, with trademarks registered in North America, Europe, and Southeast Asia. Our product range includes portable DIY welding machines, all-digital MIG, MMA, TIG, and plasma cutting machines, as well as multi-function precision submerged arc welding machines. These machines support voltages from single-phase 120V, 110V/220V, 220V±15%, to three-phase 380V~415V. They are widely used in industries like household DIY, steel structures, petroleum, shipbuilding, chemical, electric power, and metallurgy for welding and cutting materials such as carbon steel, stainless steel, and aluminum.

Our company ethos is 'Customer first, quality for life.' We aim to provide high-quality products and the most cost-effective, high-end solutions to meet diverse customer needs.