当软管长度超过50英尺，或材料粘度较高时，可能需要较高的原料泵压力。
With hose lengths over 50 ft, or when material viscosities are high, higher material pump pressures may be necessary.
本产品是聚氯乙烯为主要原料，内嵌螺旋金属钢丝和一条导电铜线的负压输送软管。
PVC steel wire Static Preventing hose This product takes polyvinyl chloride as its main material with the spiral steel wire and electric conduction copper wire inlayed, is a kind of delivery hose.
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