1.ISO8434-1;316L,321,Steel 2.DN 6 to 42mm,L and S series 3 ... quality with international standard 4.ISO9001:2008 1 1 2 Hydraulic Elbow Fitting1.ISO8434-1;316L,321,Steel2.DN ... , Guangzhou,Tianjin Office) in China, one agent in Germany. 2. Capacity of Production:JR has more than 30 sets of ... Support1.We have professional technical staff more than 20 persons.2.We put 4% annual sales to research and design ...