HPLC lub vial inserts, thaum siv nrog autosampler vials, tso cai rau cov qauv zoo tshaj plaws rov qab thiab tshem tawm cov qauv yooj yim dua vim tias cov duab conical txo qhov chaw hauv lub vial. Tag nrho cov conical styles ntawm inserts yog muab nrog cov tsoos rub taw tes raws li zoo raws li qhov txhim kho mandrel point.