直径：DTG-03-D2.0\DTG-03-D2.5\DTG-03-D3.0\DTG-03-D3.2\DTG-03-D4.0\DTG-03-D4.2\DTG-03-D4.5\DTG-03-D4.8\DTG-03-D5.0\DTG-03-D5.2\DTG-03-D5.5\DTG-03-D6.0\DTG-03-D6.5\DTG-03-D6.7\DTG-03-D6.8\DTG-03-D7.0\DTG-03-D8.0\DTG-03-D8.5\DTG-03-D9.5\DTG-03-D9.0\DTG-03-D10.0\DTG-03-D10.5\DTG-03-D11.0\DTG-03-D12.0
