In the world of plastic pipe welding, precision and consistency are everything. At the heart of every reliable PPR or HDPE welding machine lies one critical component — the control PCB (Printed Circuit Board).As a professional manufacturer of PPR welding machines, HaoTian has developed an advanced and intelligent PCB system that redefines temperature control, welding stability, and operational reliability — while maintaining a highly competitive cost structure for global markets. . Engineered for Precision and Durability The HaoTian PCB is