Chemical News and Journal of Industrial Science, Tomy 121-122Chemical news office., 1920 |
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... deposits , and invite enquiries . Address , Carlton Chambers , Baldwin Street , Bristol , England . Telegraphic address- " Beetroot . " Bristol . " Telephone No. 38 Bristol . T. TYRER & CO . , Ltd Stirling Chemical Works , STRATFORD ...
... deposits , and invite enquiries . Address , Carlton Chambers , Baldwin Street , Bristol , England . Telegraphic address- " Beetroot . " Bristol . " Telephone No. 38 Bristol . T. TYRER & CO . , Ltd Stirling Chemical Works , STRATFORD ...
Strona 6
... deposits being found in the southern provinces , below the 30th degree of north latitude . At the present time , with a few exceptions , the mines are not owned by any private companies or by the Government , but any one may employ men ...
... deposits being found in the southern provinces , below the 30th degree of north latitude . At the present time , with a few exceptions , the mines are not owned by any private companies or by the Government , but any one may employ men ...
Strona 7
... deposits continued , nevertheless , until February , 1919 , when it was found that the returns would not cover the cost of labour . Up to August , 1919 , tungsten ore was wholly an export product , as China had no way of utilising the ...
... deposits continued , nevertheless , until February , 1919 , when it was found that the returns would not cover the cost of labour . Up to August , 1919 , tungsten ore was wholly an export product , as China had no way of utilising the ...
Strona 9
... deposit was simply due to an imperfect surface on the. below the hot wire . It would be interesting to establish if this were the case . Another interesting point was the connection , if any , between the central core of the hot column ...
... deposit was simply due to an imperfect surface on the. below the hot wire . It would be interesting to establish if this were the case . Another interesting point was the connection , if any , between the central core of the hot column ...
Strona 10
deposit was simply due to an imperfect surface on the metal , the authors tried the very simple mechanical means and very effective method of producing this im- perfection , that of spraying the surface with sand . The first results ...
deposit was simply due to an imperfect surface on the metal , the authors tried the very simple mechanical means and very effective method of producing this im- perfection , that of spraying the surface with sand . The first results ...
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