Hangzhou Keen Technology Co., Ltd. is a professional manufacturer of titanium plates, titanium tubes, nickel and nickel alloy plates, nickel and nickel alloy tubes, titanium/steel clad plates, nickel/steel clad plates and zirconium materials. Our company is also a professional manufacturer of titanium, nickel and other metal pressure vessels. Our company is qualified with the ability of fabricating D2 rate pressure vessels and non-standard equipment. We have attained ISO9001:2000 ...