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US07303083B2 Easy moulding filter element support tube 有权
易成型过滤元件支撑管

Easy moulding filter element support tube
摘要:
A filter element support tube has a pair of axially extending spines and first and second sets of oppositely laterally extending half-rings axially offset from each other. The support tube is efficiently manufacturable, and desirably provides a constant diameter along its axial length.
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