API Water Oil Gas Well Drilling Tricone Roller Rock Bit Guangzhou Qiaolei Plastic Product 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：Jaw Plate of High Manganese Steel Casting Next：Direct Factory Mining Ball Mill Machine
