How many meters of 50 metal hose in one coil

How many meters of 50 metal hose in one disk. Metal hose is an important component of modern industrial equipment connecting pipeline. Metal hose used as wires, cables, automation instrumentation signal wire and cable protection tube and civil shower hose, specifications from 3mm to 150mm. small diameter metal hose (inner diameter 3mm-25mm) is mainly used for precision optical ruler of the sensing line protection, industrial sensor line protection.