Saturday, April 17, 2010

[MW:4836] VARIOUS METHODS FOR PREHEATING

Dear All,
 
 
Please inform me about various methos by which Preheating can be achieved.
 
Is it allowed to prheat the job using LPG Gas or oxy-acetylene gas.
 
Is there any code reference/restritiction for methods of preheating.
 
If possible please provide me literature on various methods of preheating.
 
 
Thanks & Regards
 
Asad Azmi

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