Among Medical bulk cable,tube is a widely used components besides of signal wires and data wires. The tube can be for air purpose,or for liquid or other purpose wires.
Considering the tube usually has thick wall ,so it is hard. When the tube is hard,the whole bulk cable can not be as flexible as othe medial cables.
Of course,the tube can also be made of low hardness materials,such silicone rubber,TPE..
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