supply of portable type welding rod flask without heating coil.portable type welding rod flask without heating coil.,portable type welding rod flask without heating coil and controller to keep baked electrodes while welding. the flask should have a capacity of 5 kg and either a circular face with inner chamber dimen sions of 73 x 503 mm (dia) or outer dimensions of 150 x 520 mm (dia), or a rectangular face with inner cha mber dimensions of 70 x 62 x 280 mm and outer dimensions of 117 x 110 x 547 mm. a dimensional tolera nce of +/- 10% is permissible. the flask should weigh no more than 4.00 kg and be insulated with thick glas s wool to retain heat for at least 3 hours. the body should be made of mild steel (ms) with a powder coatin g for durability and corrosion resistance, and accommodate electrodes of 450 mm length. [ warranty peri od: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]