產(chǎn)品關(guān)鍵詞：
鉆頭 鉆桿,
We are a professional supplier of new and used(rebuilt) drill bits used for oil filed, waterwell. Including tricone bits,PDC bits and drill pipe.Various of model and dimension available.Good condition and reasonable price.
產(chǎn)品關(guān)鍵詞：
鉆頭 鉆桿,
