
PTFE coating process

Alumite treatment 1

Alumite treatment 2

Aluminum three-fins pipe

Mirror surface processing for aluminum three-fins pipe

Mirror surface processing for aluminum four-fins pipe

Urethane coating

Stainless steel cutting processing

Press-fitting parts

Profile extrusion cutting1

Profile extrusion cutting2

Profile extrusion cutting3

Machining

Drawing

Grinding thin-walled iron pipe and Parkerizing