... range of not more than 2, the whole pipe, not more than 2.5 mm in the ... 10mm range of not more than 1, the whole pipe, not more than 5, the stones shall not ... rate Appe-ara-nce and size the injuredcover glass tube surface stroke length is more than a slight ... loosened. Sealing mouthsleek, no ankylosis, no glass accumulation, end face and inside, cover glass surface should be smooth and even thickness, ...