W series Core Barrels include single tube typeBMLC,Website:http ... soft formations. Available diameter sizes from 35-146mm. SIZE: Wireline series: Geobor S, WLA, WLB, WLN, WLH, WLP, WLB3, ... EWT, AWT, BWT, NWT, HWT(Single Tube, Double Tube) WG series: EWG, AWG, BWG, NWG, HWG(Single Tube, Double Tube ... ) WM series: EWM, AWM, BWM, NWM, HWM Other sizes: AX, BX ...