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防爆標(biāo)志Ex-marking：Ex d ⅡC T4 Gb/DIP A20 TA,T4

外殼材質(zhì)：無銅鋁合金擠壓成型，拋丸，聚脂靜電噴塑

Enclosure: Modular aluminum profile without copper, shot blasting, 

Enclosure: electrostatic polyester-sprayed