oxygen gauge box-028 with a high-precision copper alloy movement, ensuring stable flow and accurate readings. 氧气表BOX-028高精度铜合金机芯，流量稳定、读数精准

Industrial-grade oxygen gauge BOX-028, precisely regulated pressure, safe and reliable. It features a brass forged valve body, resistant to pressure and explosion hazards. The dual-scale dial is clear and easy to read, effectively preventing misoperation. Suitable for welding and other applications, it solves the issue of unstable oxygen flow. Direct supply from manufacturer, guaranteed quality, ensuring safe operations every time.