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Product name:brass vacuum pressure Body:brass body 1 brass body 2 plastic axis 3 strong spring Feed--casting—examination--pass--machining--pass--appearance polish--examination-ass--plating--examination--pass--assembling--exammation(water pressure testing or air pressure testing)--pass--packing--examination--pass--delivery We can also make the new mould to produce all according to originally sample. More information about us, visit our website please, Thanks! Our company specializes in producing various brassproducts such as vacuum valve,ball valve,angle valve,check valve,floor drain and various kinds of copper fitting.We fully absorb the same kind of quality goods all over the world, using hi-quality materials and advanced technology and strickly controlling the quality of the products. So, our products are used in a wide range of industry, such as, petroleum, chemical industry, metallurgical industry, chemical fibre, urban construction, power industry. Welcome to our website to find more information,thanks in advance.