Wear Resistant DU Bushing with Stable Guide Performance Model DP-4 | Brand XIAYI | Certification IATF16949:2016 The DP-4 DU bushing features a tri-layer composite structure — low-carbon steel backing, sintered bronze interlayer, and a PTFE-based anti-friction running surface. Designed for heavy-load, maintenance-free applications, this self-lubricating bushing eliminates the need for external grease or oil systems while delivering consistent low-friction performance from
Wear Resistant DU Bushing with Stable Guide Performance Model DP-4 | Brand XIAYI | Certification IATF16949:2016 The DP-4 DU bushing features a tri-layer composite structure — low-carbon steel backing, sintered bronze interlayer, and a PTFE-based anti-friction running surface. Designed for heavy-load, maintenance-free applications, this self-lubricating bushing eliminates the need for external grease or oil systems while delivering consistent low-friction performance from