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防爆標志Ex-marking：Ex demb ⅡC T4/DIP A20 TA,T4

外殼材質(zhì)：無銅鋁合金壓鑄，拋丸，聚脂靜電噴塑

Enclosure:Die-casted with aluminum alloy without copper,shot blasting,electrostatic polyester-sprayed