Refer to the input text as context and select the correct relationship between 'Stratasys' and '3D printing' from the available options.
Options: owner of, brand, manufacturer, product/material produced

Stratasys Ltd. SSYS is showcasing its 3D printing solutions at the International Trade Fair for the Plastics and Rubber Industries (T-PLAS) in Bangkok, Thailand which started yesterday and will run through Aug 29.
product/material produced