supply of hot air oven mechanical convention type force air circulation temperature range 50c to 400c with valid nabl accreditation certificate detailed specification is given below :- supply & installation of ageing oven. double wall construction. inner chamber made of stainless steel 304 quality. outer made of ms duly powder coa ted. the wall gap should be highly insulated with thick blanket glass wool 75mm thick. door should be also doubl e walled and insulated with glass wool, hanged with heavy hinges fitted with roller type latch. felt gasket should b e fitted with the door for sealing to protect any loss of temperature. an adjustable air vent thermometer tabulator s hould be provided at the top of the oven. heating elements are placed at the bottom and two sides of the lower pa rt for uniform temperature, elements are capable to raise the temperature up to 400c. a 3 way heat rotary switch to be provided for raising and variation of temperature low / medium / high. temperature range 50c to 400c. temp erature is controlled by solid state electronic digital temp. indicator cum controller accuracy of + / -1 c in lower as well as higher temperature. a regulator should be provided to adjust the required temperature or may be electroni c device for the same purpose. the oven will be suitable for continuous running up to 72 hrs at desired temperatu re. a turbo type blower fan fitted with suitable to provide inside the working chamber for uniform temperature fitted with neon lamps main cord and plug top, operated on 220 / 230 volts , 50 cycles 3 phase a.c. complete with thre e number gi wire mesh tray size- 14 x 14 x 14 ( minimum ) make-pec or similar. [ warranty period: 30 mont hs after the date of delivery ]