
Not so easy to drill a hole in laminated or foamed material. However, if he is able to absorb water — you can use a witty way, received in due time, even the copyright certificate. The trick is that the wetted workpiece of such material you need to pre-freeze. And so the frozen layer will easily succumb to any drilling.
V. VLADIMIROV
Recommend to read
GREENHOUSE TENT
As you know, Central Russia — a zone of risky agriculture. The late spring frosts, the "acid" summer rains, early autumn cold... in short, without a greenhouse on the plot is not enough....
MI-4 “IN VEST”
The appearance in the USSR Armed Forces helicopter Mi-4 with a lifting capacity of 2000 kg originally destined to transport paratroopers, immediately attracted the attention of numerous...