加拿大Mantech
https://mantech-inc.com/
义大利Steroglass
https://www.steroglass.it/
美国Polyscience
https://www.polyscience.com/
德國Sympatec粒徑分析
https://www.sympatec.com
义大利BEL Engineering 精密天平
https://www.belengineering.com/
英国B+S 折射計/旋光儀
https://www.bellinghamandstanley.com/en/
英国艾德姆天平
https://www.adamequipment.com/
德国卡索金属检测
https://www.cassel-inspection.com/
美国Grace Instrument
https://www.graceinstrument.com/
日本AS ONE
https://gl-wave.com/shop/login/keidy/
美国Ariesfilterworks
https://www.ariesfilterworks.com/