Your search for "styrene" revealed the following:

V-groove plastic sheet 2.5 x 0.5 x 150 x 300 mm: Evergreen plastic material, non-scale 2100

Square bar 3.2 x 3.2 x 350 mm : Evergreen Plastic material Non-scale 186

Brick (red) 120 x 200 mm, 1 sheet: cockroach, plastic material N (1:150) 37964

4 Quarter Rounds 1.5 x 350 mm : Evergreen Plastic non-scale 248

Taxi office: Sankei Kit HO(1:80) MK05-52

Street corner shop - 11 : Sankei Kit HO(1:80) MK05-54

Square bar 0.38 x 0.75 x 350 mm: Evergreen plastic material, non-scale 111

Square bar 1.0 x 2.0 x 350 mm: Evergreen plastic material, non-scale 144

Square bar 1.0 x 2.5 x 350 mm: Evergreen plastic material, non-scale 145

Stone material R-stone ballast 1:80 (1.2 - 1.6 mm) Main line light grey: Morin material HO(1:80) 450

Square bar 0.75 x 1.0 x 350 mm : Evergreen Plastic non-scale 132

Wonder Town Diorama [Full Set Version] : Sankei Kit N(1:150) MK07-32S

Shop on the street - 12 : Sankei Kit HO(1:80) MK05-56

Square bar 0.5 x 2.5 x 350 mm: Evergreen plastic material, Non-scale 125

H bar (H steel) 4.0 x 3.7 x 350 mm : Evergreen Plastic material Non-scale 281

Black tube, outer diameter 1.5mm : Sakatsu, Material, Non-scale 4521

Aramonya Color Ver.: Baioudou HO (1:87) Painted Kit ST-002-87C

Square bar 2.5 x 3.2 x 350 mm : Evergreen Plastic material, Non-Scale 176

ST wood 0.3 mm thick (horizontal), 100 x 150 mm, 4 pieces : Echo model wood, non-scale 221

Stone Wall and Stairs: Preiser Unpainted Kit HO (1:87) 18219