Greenmax N gauge old National Railway series set 210 model train 40/51 Ube/Onoda 4-car

An assorted set of old National Railway Series 40 and 51 trains that were in operation in the Ube area Can create old JNR 40/51 series 4-car trains The body is molded in gray, and the underfloor equipment is molded in black. Needs to be assembled