... rigid foam material, uses in the refrigerator, cold tank, the sandwich and so on, is good ... rigid foam material, uses in the refrigerator, cold tank, the sandwich and so on, is good ... 7.510000~14000≤G-7Uses in the refrigerator, cold tank, the size stability well, the splendid formability. ... 7.57500~10500≤G-7Uses in the refrigerator, cold tank, the size stability well, the splendid formability. ...