Sifat Mekanik Komposit Sandwich dengan Kulit Polyester/Woven Roving E Glass dan Inti Honeycomb Polypropylene Menggunakan Teknik Fabrikasi VARI dan Adhesif Cold-Press = Mechanical Properties of Sandwich Composite with Polyester/Woven Roving E Glass Fiber Skin and Polypropylene Honeycomb Core Using VARI and Cold-Press Adhesive Fabrication Techniques