在这些申请的情况下，光纤电缆应规定保护管，不要频繁移动。
In case of such applications, the optical fibre cable should be laid in protective tubes and not be frequently moved.
弯曲半径根据电缆截面型号选择，一根保护管最多不能超过三个弯头，垂直弯头不能超过两个。
The arch radius should be chosen according to the model of cable section; there should not be more than 3 elbows on one protecting pipe, and there should not be more than 2 vertical elbows.
多斯螺旋管（杭州）有限公司主要生产光纤保护管和普通电缆保护管，以及标准淋浴软管和用于医疗设备的金属软管。
DOSFLEX is producing flexible metal tubes for protecting fiber optic cables as well as electrical cables. We also produce standard shower hoses and flexible hoses used in medical equipment.
多斯螺旋管（杭州）有限公司主要生产光纤保护管和普通电缆保护管，以及标准淋浴软管和用于医疗设备的金属软管。
DOSFLEX is producing flexible metal tubes for protecting fiber optic cables as well as electrical cables. We also produce standard shower hoses and flexible hoses used in medical equipment.
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