rock wool pipe cover manufacturer 1 DNV, BV, ABS, ... thickness:30-200mm 4 diameter:1/2"-28" Rock Wool Pipe CoverIntroduction:Rock wool pipe cover products use basalt as its ... oil into various insulation products including rock wool plate, tube and elbow. Specification:1, rock wool plate (1) Density: 40 ... 25-160mm(Special size can be made to order)2, rock wool pipe cover(1) Density: 80-180kg/m3(2) ...