sheet metal fabrication: 1.we are a factory specify in sheet metal parts2.advanced CNC machines3.Have strong technical support 1.materials:low carbon steel, thickness<=20mm stainless steel, thickness<=10mm alu.,alloy alu., thickness<=10mm2.Sheet Metal Fabrication 3.CNC services4.Tooling qingdao tongji mechanical and electronic CO.,LTD is located in Shandong Province in China.We are a professional ...