Street lamp casting Material:AlSi12 Die casting,CNC machining ISO9001:2008,OEM service High quality,Pretty price,QC ... .MaterialAlSi 123.ProcessInvestment casting, sand casting4.CertificateISO9001:20005.Material StandardStainless steel, casting, copper, aluminum , brass, aluminum alloy, AlSi 12 ... focus more on machining, assembly and providing high quality mechanical parts for our oversea customers. ...