About manually operated valve
8674 manually operated valve products are offered for sale by suppliers on Alibaba.com, of which ball valves accounts for 13%, hydraulic valves accounts for 9%, and gate valves accounts for 8%.
A wide variety of manually operated valve options are available to you, such as normal temperature, medium temperature and high temperature.You can also choose from stainless steel, alloy and aluminum alloy manually operated valve,as well as from black, white, and silver manually operated valve,