Material: armor plate or SGCC galvanized or stainless steel Size(mm): (a.365*400*780).(b.365*420*780).(c.365*450*780).(d.450*550*800).BTU: (a. 7000-13000) (B. 7000-15000) (c. 7000-18000) (d. 13000-24000) Load(kg): a,b,c)60+60; d,)75+75. Link: scerws. Surface: polyester powder coating