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Zj30 Truck Mounted Mobile Drilling Rig Zj30/1700CZ, 3000m Oilfield Drilling Equipment, Find Details and Price about Zj30 Drilling Rig Zj30 Land Drilling Rig from Zj30 Truck Mounted Mobile Drilling Rig Zj30/1700CZ, 3000m Oilfield Drilling Equipment - Dongying Qingchang Petroleum Machinery Co., Ltd.