Tower crane mast section (1.6m and 2.0m) 1. Mast section model: L44A1, L46A1, L68A1, L68B1, L68B2 2. Angle iron: 200mm*200mm*20mm 3. Connection: Pin shaft (35Cr) 4. Painting 4lays, Other Models L44A1 1.6m*1.6m*3m angle iron 160mm*160mm*16mm L46A1 1.6m*1.6m*3m angle iron 180mm*180mm*18mm L68A1 2m*2m*3m angle iron 200mm*200mm*20mm L68B2 2m*2m*3m angle iron 200mm*200mm*20mm Different types of mast sections, anchorage collar and base frames for widely used tower crane models: Mast section L44A1 for FO23C, MC115B general mast section Mast section L46A1 for FO23C, MC110, 170, 175B general mast section, MC115B reinforced mast section Mast section L66A1 for FO/23B general mast section Mast section L66A2 for MC230, MC200 Mast section L68A1 for FO23B Mast section L68B1 H3/36B, C7030 Mast section L68B2 MC320, 300, 230 and MD265, 235 Anchorage collar 1.6m Anchorage collar 2.0m Base frame D50 for 1.6m tower crane Base frame D65 for 2.0m tower crane 88HC mast section 90HC mast section 120HC mast section 120HC reinforced mast section 132HC mast section 154HC mast section 170HC mast section 200HC mast section 256HC mast section 290HC mast section Other name brand tower crane mast section such as Comansa and Simma