Got it! You have a single b3dm model and its position is given in EPSG:5186 coordinates. You want to create a Cesium 3D Tiles tileset for this model.
Here’s a step-by-step guide in English on how to create the tileset.json to place your b3dm model correctly on the globe.
|obj_3d_cd|x_val|y_val|
|B001000000052LXKN_S12FFP0244|233843.3121|416899.5308|
|B001000000052FG4J_S12FFP0262|233839.7597|417114.971|
|B001000000052LUOO_S06FFP0536|234961.3378|416355.3084|
|B001000000052LUEE_S06FFP0557|234684.1979|416506.9531|
|B001000000052LCK2_S06FFP0826|234896.356|416578.2791|
|B001000000052LBDT_S11FFP0678|233850.7127|416602.0746|
|B001000000052FTRK_S12FFP0027|234413.1227|417310.234|
|B001000000052FTRK_S12FFP0028|234432.9231|417310.2765|
|B001000000052LVUV_S12FFP0955|234328.2525|416750.3463|
|B001000000052FICT_S12FFP0140|233963.4944|417360.2847|
|B001000000052FK5O_S12FFP1146|234828.7065|417162.6487|
|B001000000052FFQ5_S12FFP1147|234835.4497|417162.4411|
|B001000000052FSME_S28FFP1445|234255.2849|418987.2004|
|B001000000052LXHK_S11FFP0658|234060.7787|416303.3878|
|B001000000052LCHY_S11FFP0661|233902.4992|416489.1067|
|B001000000052LXRU_S05FFP0749|235193.5391|415741.5366|
|B001000000052FHYF_S13FFP0778|233814.7783|418139.6447|
|B001000000052FH6M_S13FFP0779|233814.3739|418147.0651|
|B001000000052FI6N_S12FFP0859|234187.7454|417223.5259|
|B001000000052FIR9_S12FFP0944|234008.0469|416980.0242|
|B001000000052WV1D_Y01FFP1733|228705.6509|411726.0358|
|B001000000052LXKN_S12FFP0245|233844.3047|416927.6743|
|B001000000052FICT_S12FFP0139|233968.4101|417367.313|
|B001000000052FJFX_S12FFP0180|233966.3404|417299.7359|
|B001000000052LROL_S12FFP0887|234295.8849|416895.3764|
|B001000000052LBP6_S12FFP0900|234296.4007|416867.2216|
|B001000000052FCKV_S12FFP0924|233950.7398|416995.2337|
|B001000000052FE3G_S12FFP0912|234296.1537|416968.5165|
|B001000000051XY3I_Y23FFP2865|232613.1311|419745.599|
|B001000000051XEWR_Y24FFP2866|232667.3647|419705.9133|
|B001000000052LFWH_S08FFP1990|234957.4962|415857.097|
|B001000000052FFIW_S13FFP1361|233873.4866|417967.7511|
|B00100000003IK63R_Y46FFP2610|234914.0187|425531.6029|
|B001000000052LX14_S12FFP0329|234829.1359|416924.6547|
|B001000000052LXCF_S12FFP0351|234981.2951|416909.6832|
|B00100000005251ND_Y24FFP2753|232754.9963|419047.3049|
|B001000000052LAP5_S12FFP0344|234837.4549|416893.1081|
|B001000000052FEO2_S12FFP1130|234055.2923|417081.6005|
|B001000000052FKGZ_S13FFP0774|233855.3515|418050.1322|
|B001000000052FCYA_S12FFP0288|234786.9941|417162.8289|
|B001000000052FK2L_S12FFP0302|234929.2562|417307.1034|
|B001000000052FCQ2_S12FFP1186|234978.5607|417216.2056|
|B001000000052FFN2_S12FFP1187|234974.2294|417164.5248|
|B001000000052FHVC_S13FFP1372|233855.4122|418322.7793|
|B00100000005251ND_Y24FFP2754|232808.8822|419032.2679|
|B00100000005263JC_Y24FFP2786|232811.8611|419193.6858|
|B001000000051X8G5_S12FFP0350|234979.946|416959.1465|
|B001000000052FJEW_S12FFP1119|234332.5297|417021.1102|
|B001000000052FDFR_S12FFP0314|234927.1551|416982.7247|
|B001000000052G1FG_S12FFP0358|234950.6305|417018.6065|