HAIYAN BOOMSHINE EXPORT&IMPORT CO.,LTD

 our company has its own factory called ZIYUN FASTENER which is established in 2005,domestic market is our main market in firet couple of years ,we kept a bussines relationship between some big companys .and now we put our attention in foreign market.
We produce various kinds of nuts ,DIN ,ISO,ANSI

NSI and BSW etc. From M2-M24. About surface treatment ,we can provide you zinc plated ,plain ,yellow zinc plated ,black and black with heat treatment.Also,we can provide you bolts ,screwes,anchors and threaded rodes.
If you are interested ,please contact me without hesitation.