HELMET

HELMET

1. Kev tiv thaiv qhov muag ob lub lim dej kom tsis txhob muaj teeb meem ultraviolet thiab infrared hluav taws xob tsim los ntawm arc, nrog rau kev puas tsuaj rau lub qhov muag los ntawm lub teeb vuam muaj zog, thiab tiv thaiv qhov tshwm sim ntawm electro-optic ophthalmia.2. Kev tiv thaiv lub ntsej muag Zoo tiv thaiv cov txaws thiab cov khoom tsis zoo hauv kev ua haujlwm ntawm kev ua txhaum ntawm lub ntsej muag, thiab txo qhov tshwm sim ntawm daim tawv nqaij kub hnyiab.3. Kev tiv thaiv ua pa Airflow kev taw qhia, zoo txo ​​cov pa phem thiab plua plav tawm los ntawm kev vuam rau lub cev thiab tiv thaiv qhov tshwm sim ntawm cov kab mob pneumoconiosis ua haujlwm.