brass ball valve factory 鈥?Our History Shandong Yahong Pipe Industry Co., Ltd. was established in 2003 with a registered capital of 2.18 million yuan. It is subordinate to Yahong group, located in the industrial park of Linyi City, Shandong Province. It has convenient transportation advantages. Yahong Pipe is a comprehensive website:http://www.yahongpipe.com/