German Jack ( JK ) is the world leader in fluid control products and service providers, designers and manufacturers of products used in various industrial and general business occasions. Set up in nearly a century, more than 100 be conscientious and do one's best engineers continue to develop high-quality valves and accessories products to meet different market needs. All products are in a line with international standards ISO9001 strict quality system to finish the homework, JK products and distributors in 43 countries around the world. German Jack ( JK ) valve supply valve products: imports of ball valve, inlet valve, inlet electromagnetic valve, needle valve, inlet valve, check valve, stop valve, safety valve, regulating valve, inlet valve, plug valve, diaphragm valve, exhaust valve, breathing valve, inlet filter, imported fire arrestor, angle seat valve, balance valve, inlet valve, inlet valve, inlet valve, pneumatic valve, electric valves, steam valve, inlet valve series. German Jack valve values summed up as: professional - International - human. Because of