Programmable Ion Permeation (PIP) is a kind of duplex surface modification technology integrating heat treatment technology and anti-corrosion technology. It infiltrates non-metallic elements (N, C, O) and rare earth elements (Y, La) into the ferrous materials through several processes, forming a composite corrosion and wear resistance coating on the surface of the component. According to identification, Huamin Holdings showed significant innovation in the PIP technology on the whole, which is internationally advanced (with some indicators reaching a leading level worldwide).Pin roll is a kind of fastener used in the pin joint of two parts. Our pin rolls are better than those processed by zinc plating, chromium plating, nickel plating, phosphating, blackening and other processes in terms of wear and corrosion resistance.

Programmable Ion Permeation (PIP) is a kind of duplex surface modification technology integrating heat treatment technology and anti-corrosion technology. It infiltrates non-metallic elements (N, C, O) and rare earth elements (Y, La) into the ferrous materials through several processes, forming a composite corrosion and wear resistance coating on the surface of the component. According to identification, Huamin Holdings showed significant innovation in the PIP technology on the whole, which is internationally advanced (with some indicators reaching a leading level worldwide).Benefiting from the Programmable Ion Permeation (PIP) technology, this all-black piston rod embraces both practicality and industrial beauty with such features as high wear and corrosion resistance and low friction coefficient.