Abstract: A resin composition for an insulating layer includes: an olefinic resin as a main component; and a metal deactivator, wherein the olefinic resin consists of block polypropylene and polyethylene, and wherein a content of the polyethylene in the olefinic resin is greater than or equal to 1% by mass and less than or equal to 10% by mass.

Abstract: A trolley includes a trolley body which in turn includes a wheel that is freely movable on a floor, and a first support that supports a component of a substrate processing apparatus that slides in a lateral direction and is pulled out to an outside of the substrate processing apparatus. The trolley also includes a second support that is connected to the trolley body so as to be freely movable between a first position where a width of the trolley in the lateral direction is a first length and a second position where the width in the lateral direction is a second length longer than the first length, and configured to support the component at the second position together with the first support.