Hunan Zhenheyikang Medical Instrument Co., Ltd is based in China and lists medical and security products on Global Trade Plaza. Its catalog includes the ZK500 disposable general medical mask, a 3-ply mask made of non-woven fabric with melt-blown filter layer, sized 17.5×9.5 cm and offered in blue. The mask meets YY0969 and EN14683 standards and carries CE, FDA and ISO13485 certificates. The company also supplies ZK disposable medical dental kits in inspection and care configurations. Inspection kits contain a double-layer PP tray, ABS dental probe and forceps, ABS dental mirror, paper-plastic composite examination pad and medical absorbent cotton. Care kits include a PP tray, wooden tongue depressor, plastic tweezers, paper-plastic composite pad and absorbent cotton. Probe torque is 0.15 Nm, tensile force 50 N, forceps opening deformation ≤2.0 mm and operating force 29 N. For security screening, Hunan Zhenheyikang offers the ZK5000 infrared temperature walk-through metal detector and the ZK4000 biometric facial recognition temperature measurement terminal. The walk-through unit combines infrared temperature sensing (±0.3 °C accuracy, 25–43 °C range) with metal detection, weighs 45 kg net and operates on AC 110–240 V. The facial terminal runs Linux/Windows on a 4-core 1.2 GHz CPU with 4 GB RAM and 16 GB ROM, stores 3,000 faces and 1,000,000 transactions, measures 30–45 °C with ±0.5 °C accuracy and supports TCP/IP, USB, Wi-Fi and optional ID/IC card or backup battery. Buyers can send an enquiry through Global Trade Plaza.