Wholesale Blue 3 Ply Earloop Face Mask, Nonwoven Sterile Surgical Medical Face Mask China

10Apr

Working principle of Pulse Oximeter

The oximeter uses non-invasive measurement infrared technology to measure fingers, toes, and ears. This is the most common place to measure the oxygen content...
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07Apr

Welmade in action

Welmade Technology (Shenzhen) Co., Ltd. is located in Shenzhen, a beautiful international coastal city with a 5000m² workshop, and a 100,000-level dust-f...
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