In manufacture process, we use raw material with certified quality according to the following rules:

Products exported to European market

For brass parts

· For hot forgings: brass CW617N,CW724R EN 12165

· For bar machined parts: brass CW614N EN 12164

· For mold castings: brass CB755S EN1982

For bronze parts for

For sand shell castings: ingot of CB499K ,CB470K EN1982

Products exported to North American market

For brass parts

· For hot forgings: brass C37700

· For mold castings: brass C46500

For bronze parts for

· For sand shell castings: ingot of C83600 ,C84400,C89833 and C87850

We have sand polished surface and 10μm thickness nickel plating for valves and brass fittings,and we have chrome plating surface for faucets,floor drains.chrome plating could pass 96-hours neutral salt spray test (per ISO 9227/ASTM B117).

If you have also other request for the surface treating, such as PVD,please communicate with us about it.

The standard thread of general use in our accessories is manufactured according to ISO 228, known as BSPP, a parallel type thread. In some cases, as in flexible connections with tapered thread, the thread follows EN 10226 (before ISO 7), and some customized products also used Metric thread DIN.

On our blog you will find a wide technical description of different sorts of threads.

Note: special manufacturing of other thread’s standards can be done upon customer request.

Please contact our colleague through the contact way on our websites, let them know what products you’re interested in ?or your request,we could quote for you after communication of your demands