Element::__construct

public function __construct($iblockId, $elementId)
{
	$this->iblockId = intval($iblockId);
	$this->elementId = intval($elementId);

	if (self::$catalog === null)
	{
		self::$catalog = \Bitrix\Main\Loader::includeModule("catalog");
	}

	if (self::$catalog)
	{
		$catalog = \CCatalogSKU::getInfoByProductIBlock($this->iblockId);
		if (!empty($catalog) && is_array($catalog))
		{
			$this->skuIblockId = $catalog["IBLOCK_ID"];
			$this->skuPropertyId = $catalog["SKU_PROPERTY_ID"];
		}
	}
}