First, as for the global residential Brass Rods industry, the industry concentration rate is highly dispersed. The top 5 manufacturers have 30.61% sales revenue market share in 2017. The Wieland which has 7.62% sales market share in 2017, is the leader in the Brass Rods industry. The manufacturers following Wieland are Daechang and KME, which respectively has 6.51% and 6.46% sales market share globally.