


Shenzhen Defulong Technology Co., Ltd, a distinguished name in the welding industry, has achieved remarkable success over the past 9 years. Through relentless dedication and exceptional effort, we have ascended to become a leading domestic force with significant international influence in welding power sources and accessories.
Our operations encompass both welding machine and torch manufacturing plants, complemented by our Professional Trading Company, which expertly handles our export business.
At Shenzhen Defulong Technology Co., Ltd, 'Customer First and Quality Life' is our guiding principle. Backed by a professional R&D team and adept sales teams, we excel in OEM and ODM cooperation for export ventures. We deliver products that meet Asian and European quality standards, including RoHS compliance. Most of our products are CE certified. We tailor welding solutions to varied conditions such as voltage, temperature, and application needs, catering to both heavy-duty and DIY markets.
and unparalleled customer service.


After years of steadfast commitment and tireless efforts, we have risen to prominence as a globally influential enterprise in welding power sources and accessories. Our products are exported to over 70 countries across North America, Europe, the UK, Japan, India, and Southeast Asia. With substantial product reserves in many countries, we ensure rapid shipment to our customers.
Our esteemed HITBOX brand boasts registered trademarks in North America, Europe, and Southeast Asia. Our product lineup features portable DIY welding machines, all-digital MIG, MMA, TIG, plasma cutting machines, and advanced multi-function precision submerged arc welding machines. Our machines support single-phase 120V, 110V/220V, 220V±15%, and three-phase 380V~415V. These robust products are essential in industries like household DIY, steel structures, oil, shipbuilding, chemicals, power, and metallurgy, efficiently welding and cutting materials such as carbon steel, stainless steel, and aluminum.
Our company lives by the motto 'Customer First, Quality for Life.' We strive to deliver premium products and services, ensuring cost-effective high-end solutions that meet the diverse needs of our clientele.