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13 3 / 8 "--30 " / 35kn. M Type C Drill Pipe Manual Tong/Casing Manual Tong, Find Details and Price about Manual Tongs Manual Tongs Drilling from 13 3 / 8 "--30 " / 35kn. M Type C Drill Pipe Manual Tong/Casing Manual Tong - Dongying Oilman Machinery Equipment Co., Ltd.