API Water Oil Gas Drilling Tricone Bits TCI Rock Bits Beijing Superior Drilling Equipment Co., Ltd. Base Info Model NO.：Superior1Color：Golden and Other ColorsTrademark：superiorTransport Package：Wooden CaseSpecification：size from 3 7,8" to 26"Origin：HejianHS Code：8207191 Description Pre：Rod Ball Mill for Stone Coal Gold with Ce Next：Dry Mining Ball Mill Machine
