... mold making 3. Dust-free injection and assembly workshop lab test tube rack:1. Customize test tube rack,centrifuge tube ... Freezer Storage Box,pipette tip box,robotic tips,conical tubes,vials,centrifuge tube,screw cap tube,snap cap tube,etc, ... and high-precision plastic part and plastic injection mould for lab disposable consumable,electronic products,industrial product,household products,(OEM). ...