1 2 2

: .. Plastic

  1. #1

    Jul 2011
    -
    15,677

    .. Plastic


    . . (polymers) _ . . .

    1862 Alexander Parkes .

    London exhibition Celluloid . ϡ .

    :

    1909 (bakelite). polyester) ) PVC)) .

    :

    1- (Injection Moulding ) : (pellets) .

    2- (Hot Extrusion Moulding) : .

    :

    1- (Thermoplastic )

    . (Polythene) , .

    2- (Thermosetting)

    . . , . , !


  2. #2

    Jul 2012
    5,302

    : .. Plastic



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