HAIYAN BOOMSHINE EXPORT&IMPORT CO.,LTD 

we have our own factory called ZIYUN FASTENER,so we can produce various kinds of nuts ,DIN ,ISO,ANSI 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.

GRADE:4 6 8 10

SURFACE TREATMENT:plain,blue zinc plated,yellow zinc plated,black with heat treatment,black,hot dip galvanizing

PACKAG:as customers'request

TERMS OF PAYMENT:30% advance payment,70%T/T after received the fax copy of bl