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Persona de contacto Ms. May
Anshun Road, Weifang, Shandong
Our company produce the master bushings and insert bowls with the size from *7 1/2 to *7 1/2 ***** are cast with high-qualityy alloy steel and the sizes conform to API Spec 7K, there are two types, pin drive and square drive.API standard rotary slip, drill collar slip, casing slip or roller kelly bushing can be contained in them.
