Printed Circuit Board We specialise in Manufacturing and Exports of DRILL ENTRY AND BACK UP BOARDS DRILL ENTRY AND BACK UP BOARDS WE HAVE THREE TYPES OF DRILL ENTRY AND BACK UP MATERIAL PHENOLIC LAMINATED SHEETS ,BOTH SIDE GLOSS(BROWN COLOUR) MELAMINE LAMINATED SHEETS,BOTH SIDE GLOSS(BOTH SIDE WHITE COLOUR) Wood Core with Melamine Paper both sides. THICKNESS : 2.5MM THIS IS A GOOD BACK UP MATERIAL. Features: Used for PCB drilling Good surface flatness, good thickness tolerance Size: 42"X48" 54"X48" Thickness: 0.5mm, 0.8mm, FOR (ENTRY BOARD) THICKNESS: 1.2mm,1.5mm,2.0mm,2.5MM (BACK UP BOARD) ALLUMINUM ENTRY SHEET FOIL PAPER FOIL LAMINATE FEATURES USED FOR PCB DRILLING THICKNESS AS PER REQUIREMENT