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Eastern Coalfields Limited is seeking bids for cleaning fallen coal and debris from 43L to 45L between 16WD to 12WD in the R-V seam at Khottadih Colliery. The work will be supervised by the Area Survey Officer.
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WD-83062-S-07, ALT.6, Items 2 & 3. Other technical Requirements Confirming to Specification No. 04-ABR-2019. Material specification of pipes as under, Pipes 32 NB:-Seamless to IS: 1239 (Part-I):2004 with amendment 1 to 6, Heavy Grade or ASTM A-106 Gr.A. Socket & Flange:-IS: 2062-2011, Amendment 1 of Nov.2012, Gr. E 250 A for 32 NB pipe.
CARBIDE INSERT