... 4.dimension:standard or as cli OEM high precision sheet metal stamping parts Production Description Haiyan Hongtai Metal ... surface treatment:Zinc , powder coat, hot-dip galvanized,blackening, electroplate…3) machining Process:Stamping , turning,tube bending, welding, milling ... , Japan,Europe and other countries and regions. 6. Quality management systems - Requirements: ISO 9001:2008 .Welcome to ...