the production line for the processing and production of oil drilling pipe, is mainly divided into three steps, by using the upsetting machine, intermediate frequency quenching and tempering machines, pipe threading lathes and some other machines. Highlights: 1. Our products...
By tank, power establishment, reversing valve, pressure relief valve, oil pump body, pump oil institutions by the oil hole, high and low pressure oil pump body, eccentric shaft, eccentric bearing, driven gear and a pair of high pressure oil pump,...
We are offering wsk a casing in machine, 1.this machine is applied to hardcover book, note book, and the other hardcover products. 2.the sturcture of this machine is compact and the machine is easy for operation. 3.quick to change for different...