Henkofholland mastermodelling military vehicles scale 1/72 ...

However, if the tank is located in an area where heavy frost is common during the winter months an additional pressure / vacuum relief valve must also be provided. 5.5.5 Roof Hatch 5.5.5.1 The manufacturer shall furnish a roof opening which shall be placed near the outside tank ladder and which shall be provided with a hinged cover and a hasp ... ................
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