OTTAWA — Canada's economic growth was flat in July, data showed on Tuesday, in line with expectations and signaling a slower start to the third quarter after a solid growth in the prior three months quarter. This was after three straight months of positive growth and comes right before a new set of tariffs from the United States hit Canada in August. Both the goods-producing industries and services-producing industries were largely unchanged in July, Statistics Canada said. The good-producing sectors contribute roughly a quarter of the gross domestic product. Among the goods-producing industries, the manufacturing sector decreased by 0.9 percent in July, posting its first decrease in four months. This was primary led by a decline in activity at petroleum refineries which was down 6.2 percent in July. The mining, quarrying and oil and gas extraction also posted a decline of 0.5 percent, down for the second month in a row, StatsCan said. However, utilities and constructions sectors grew by 1.7 percent and 1.3 percent respectively, offsetting most of the decline, the statistics agency said