Sumitomo Electric Interconnect Products (SEIP) is a subsidiary of Sumitomo Electric Group of Japan who is one of the largest corporations in the far east. SEIP products include heat shrinkable tubing and solder sleeves for a variety of industries including automotive, aerospace, appliance, communications, medical and transit. Their QPL's include M23053 tubing and MiL-C-83519 solder sleeves.