Ngwa MD-S401 maka nha ọkwa mmanụ nke gwongworo mmanụ locomotive.

Ihe na-ebufe ọkwa mmiri mmiri usoro MD-L100E na-atụle ọkwa mmiri ma ọ bụ omimi mmiri dabere na ụkpụrụ nke nrụgide hydrostatic. Ọ na-eji ihe mmetụta silicon nke na-ekewapụ akpụkpọ ahụ nke nwere arụmọrụ dị elu, wee jiri teknụzụ nkwụghachi okpomọkụ dị elu na teknụzụ mkpuchi mmiri iji gbanwee nrụgide static ka ọ bụrụ ọkụ eletrik ọkọlọtọ. Mmepụta akara.

Ihe na-ebufe ọkwa mmiri mmiri nke usoro MD-L100E na-eji shei ígwè anaghị agba nchara 304 na eriri polyurethane echekwara iji hụ na o nwere nguzogide nchara na-adịghị mma, nke a pụrụ ịdabere na ya maka nha ọkwa mmiri na ebe nchekwa mmiri, osimiri, ọgwụgwọ nsị mmiri, mmiri obodo, wdg.