Your search for "Rail for mini mini train" revealed the following:

Battery-Powered Self-Propelled Miniature Train : Yoshiaki Ishikawa Finished product N (1:150)

Arch Bar Bogie : Micro Trains Complete N(1:160) 302000

Arch Bar Bogie with Coupler (Short handle) : Micro Trains Complete N(1:160) 302001

Battery-Powered Self-Propelled Miniature Train : Yoshiaki Ishikawa Finished product N (1:150)

Kururi A4 size rail : Ishikawa Yoshiaki Railroad Track 9mm gauge N (1:150)

150-00018 JNR steam locomotive crew - assistant engineer casting coal : Tiny Tales - Pre-Colored 1:150

Self-propelled mini mini train with built-in battery : Yoshiaki Ishikawa Painted Completed N (1:150)

Battery-Powered Self-Propelled Miniature Train (Choshi 501 Orange) Pantograph Type: Yoshiaki Ishikawa Finished product N (1:150)

Small Spike 1000 pcs. : Micro Engineering, Railway Material 30-106

080-00015 JNR steam locomotive crew - engineer inspecting : Tiny Tales - Pre-Colored 1:80

Deck Girder Bridge (Code 83 rail included) : Micro Engineering Unpainted Kit HO(1:87) 75-505

Battery-Powered Self-Propelled Miniature Train : Yoshiaki Ishikawa Finished product N (1:150)

Kururi Mirror Placement A4 size rail : Yoshiaki Ishikawa Railroad Tracks 9mm gauge N (1:150)

Battery-Powered Self-Propelled Miniature Train Pantograph Type: Yoshiaki Ishikawa Finished product N (1:150)

Guardrail A: Sankei Kit N (1:150) MP04-29

4-story station building A : Miniature Kobo Kit N (1:150) PKNS1020A1

Battery-Powered Self-Propelled Miniature Train Pantograph Type: Yoshiaki Ishikawa Finished product N(1:150)

150-00015 JNR Steam Locomotive Crew - Engineer inspecting : Tiny Tales - Pre-Colored 1:150

Handrail : Grant Line Unpainted Kit N(1:160) 8027

150-00020 JNR Steam Locomotive Crew - Assistant Engineer with Elbow on Window (Pre-processed) : Tiny Tales - Pre-colored 1:150