Add spaces: Forinstance,telecomsoperatorsneedtoprovideevidencethattheyfulfilCzechtaxandhealthcareobligationsfordoingbusiness.

Answer: For instance, telecoms operators need to provide evidence that they fulfil Czech tax and healthcare obligations for doing business.

Add spaces: providesheavymachineryindustrywithweldedandplate-constructedmachinepartsandaccessories,mademainlyofheavymetalplates

Answer: provides heavy machinery industry with welded and plate-constructed machine parts and accessories, made mainly of heavy metal plates

Add spaces: 2.3.4PassingthoughUnitsmaybepassedthroughbyownunitsthatareforcedback,ref.4.2.0,andinconnectionwiththerollofdiceforspreadofrout,ref.5.4.2.

Answer:
2.3.4 Passing though Units may be passed through by own units that are forced back, ref. 4.2.0, and in connection with the roll of dice for spread of rout, ref. 5.4.2.