SHANGHAI NEWS: The first chimney controlled blasting was carried out in Shanghai
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SHANGHAI NEWS: The first chimney controlled blasting was carried out in Shanghai
Science
Length:
05:30:00
Date:
1982-1-1
Collection
Keywords:
Controlled blasting | Waste chimneys |
Comrades from the Controlled Blasting Laboratory of No.4 Survey and Design Institute of Ministry of Railways carried out a controlled blasting to demolish waste chimneys in Hudong Brick and Tile Factory, which is of unprecedented difficul.