1. CH4, CO, O2, H2S gas detector 2, provide OEM, ... offer off shell plastic case for electronic and electrical application.1. Plastic box.2. Material: ABS, PC, PE, PA, Nylon66, ... to clients' requirement and can make high-quality injection mould.1) We have +10 years working-experiences.2) Professional mold ... and long-term relationship with you. Portable 4 in 1 gas detecting alarm design and produce