Your search for "ysk" revealed the following:

Water Flow Parts - Water Column B Set : YSK Unpainted Kit - Non Scale Part 357

Shipping Carrier: YSK Unpainted Kit N (1:150) Item No. 481

Flexible container bag (black) : YSK Unpainted kit N (1:150) Part No. 410

Storage Shed: YSK Unpainted Kit N (1:150) Part No. 273

Switchboard (OD Olive Drab): YSK Unpainted Kit N (1:150) Part No. 320

Showcase (round) : YSK Unpainted kit N(1:150) Part No.414

Staircase with ramp: YSK Unpainted Kit N (1:150) Part 388

Old Tyres : YSK Unpainted Kit N (1:150) Part No. 287

Wooden Lantern (Red): YSK Unpainted Kit, HO (1:80) Item No. 460

Blue Sheet 2 : YSK Unpainted Kit N (1:150) Part No. 386

Kotetsu Bridge (Red): YSK Unpainted Kit N (1:150) Part No. 275

Torii Set : YSK Unpainted Kit N (1:150) Part No. 300

Water Current Parts - Wake Wave B Clear : YSK Unpainted Kit - Non Scale Part No. 374

Penguin Material D (Walking): YSK Unpainted Kit 1:72 Part 404

Air Conditioner Outdoor Unit (Large): YSK Unpainted Kit N (1:150) Part No. 345

Temporary Toilet: YSK Unpainted Kit N (1:150) Part No. 328

Fox Set: YSK Unpainted Kit N (1:150) Item No. 478

Plastic pallet (green) : YSK Unpainted kit N (1:150) Part No. 467

Diagonal crossing (large) : YSK Unpainted kit N (1:150) Part No. 409

Freescale Memorable scenes series RPG style "street trees" 3 pieces : YSK Unpainted kit Non-scale Part No.424