Click image to view full size image
Our company product the master bushings and insert bowls with the size from 171/2 to 371/2 inch,They are cast with high-quality alloy steel and the sizes conform to API Spec 7K.There are two types,pin drive and aquare drive and square drive.API standard rotary slip,dril collar slip ,casing slip or roller Kelly Bushing can be contained in them.
Master and master bushings
Jinan Tianwei Innovation Oilfield Equipment Enterprise (Oee )
