Take context from the input text and decide on the accurate relationship between 'Stratasys' and '3D Printing' from the options provided.
Options: distribution format, creator, product/material produced, platform

Stratasys Ltd. 23/07/2015 | Press release Stratasys’ Solidscape and Kangshuo Group Launch Market Expansion in China With Largest 3D Printing Service Bureau Network
product/material produced