Test Tube Racks

The single piece tube holders provide constant sample visibility in coated wire or transparent plastic styles. With heat resistance, the test tube racks can even hold

This object is a test tube made of Pyrex glass. The test tube is one of the most commonly used pieces of laboratory ware. Test tubes are the perfect shape and size

High Quality Test Tubes with Competitive Price. SGS Audited Suppliers. Leading gongdong. Quality China Products.