We, the Siam Industrial Wire Co., Ltd. (SIW), are biggest maufacturer of Pre-stressed concrete wire, 7-wire strand, Cold-drawn steel wire and Mesh.Our quality products have been exported to almost 30 countries worldwide.Our company accredited by ...

We are the trading company export the pc strand wire and galvanize wire in reasonable price and high quality under licence of BS standard and ASTM standard.

Siam Industrial Wire is a member of NatSteel Holdings and wholly owned subsidiary Tata Steel group. With an annual production 200,000 tonnes, SIW one ASEAN\'s largest manufacturers pre-stressed concrete steel products. It manufactures strand, PE ...