In the example show here, the two longitudinal wall parts have a continuous upper beam 16 as well as a bottom beam 17 which are connected to the front panel 6 and the back panel 8 as a casting in one piece in the example shown here by {HEAD ~ means} of {TAIL ~ corner parts} 18 and 19 
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In the example show here , the two longitudinal wall parts have a continuous upper beam 16 as well as a bottom beam 17 which are connected to the front panel 6 and the back panel 8 as a casting in one piece in the example shown here by { HEAD ~ means } of { TAIL ~ corner parts } 18 and 19
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