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井内钻探设备
Sleeve
Inner Diameter: Customized according to shaft diameter.
Outer Diameter: Slightly larger than inner diameter to ensure proper sliding fit.
Length: Determined by application requirements.
Materials: Common metals such as steel, copper, or plastic.
Surface Treatment: May include chrome plating, nickel plating, etc., to improve wear resistance.
Tolerance: Customized based on fit precision requirements.
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