- 1703-B Hoover Ave. National City, CA 91950 Lic. # 645805, (619) 474-2995, fax (619) 474-2997 We would like to take a moment of your time to introduce you to our company. We have 18 years of experience in the structural steel and welding trade in San Diego California, USA. And would likely be a valuable asset as a subcontractor to your company. Structural and Misc. Steel Stainless and Aluminum In ...thorin.adnc.com/~cumf