型号规格： 
柱长×内径×膜厚 订货号
12m×0.25㎜×0.25µm 11212-3
25m×0.25㎜×0.25µm 11225-3
30m×0.25㎜×0.25µm 11230-3
50m×0.25㎜×0.25µm 11250-3
25m×0.32㎜×0.25µm 11225-5
25m×0.32㎜×0.25µm 11230-5
15m×0.53㎜×0.50µm 11230-7
15m×0.53㎜×0.50µm 11230-8