Utilize the input text as a context reference, choose the right relationship between Stratasys and 3D printing from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Survey Reveals 3D Printing’s Imminent Impact on Manufacturing Stratasys Direct Manufacturing sampled 700 professional users of 3D printing to identify current and future trends Stratasys Direct Manufacturing 20 hours ago  .

Answer: product_or_material_produced