熱熔(rong)膠塊是一種柔軟的固體，通常為矩形或正方形。它們需要加熱到一個較高的溫度才能熔化，并可用于粘合各種材料。
總之，熱(re)(re)熔(rong)膠(jiao)是一種(zhong)廣泛應用(yong)(yong)的粘(zhan)合劑，可以根(gen)據不(bu)同(tong)的成(cheng)分(fen)和(he)用(yong)(yong)途分(fen)為多種(zhong)類型。它們可以以不(bu)同(tong)的產品形式提(ti)供，例如熱(re)(re)熔(rong)膠(jiao)塊、熱(re)(re)熔(rong)膠(jiao)粒和(he)熱(re)(re)熔(rong)膠(jiao)棒，適(shi)用(yong)(yong)于各(ge)種(zhong)不(bu)同(tong)的應用(yong)(yong)。
