SEIP Business Location
Sumitomo Electric Interconnect Products, Inc.(SEIP), San Marcos, California is home to customer service, our manufacturing and warehouse facility, financial, and order entry functions.
SEIP San Marcos, California - United States
915 Armorlite Drive
San Marcos, California 92069, USA
(800) 758-3515 - US/Canada
(760) 761-0600 - Outside US/Canada
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In addition to the above locations, Sumitomo Electric Fine Polymer ("SFP") has other manufacturing locations worldwide, Japan, Germany, Taiwan and China. Visit
page to find the location.
San Marcos, CA
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