... certification Material:Al-Cu Performance:non sparking Tool Set For Gas Station 12PCS, 18PCS, 20PCS, 22PCS, 30PCS1. Material: ... and explosion-proof environments with less stringent requirements (such as gas stations, small oil depots, etc. ). The beryllium copper alloy ... explosion-proof tool for refineries to switch gas stations, gas production plants, drilling crew and so on. 4. ...