1, Dahan Hardware Brand belongs to Shandong Huaao Electric Co., Ltd., which is mainly engaged in the research, development, production and sales of inverter welding machines, large-scale welding complete sets of equipment, argon meters, special welding machines and numerical control cutting machines.

2. Foshan Aobinshi Welding Technology Co., Ltd. is an enterprise integrating independent research and development, production, sales and service, and is an advanced and professional welding equipment manufacturing factory in the welding industry. A variety of welding auxiliary equipment and argon meter have obtained national design patents. Therefore, argon flowmeter is a big welding hardware brand and Foshan Aobin Shihao.