... enzymes,RNA enzymes,proteins,DNA,heat and metal Main Products: Universal Pipette Tips,Filer Tips,Centrifuge Tube,Microcentrifuge Tube,PCR Tubes ... enzymes,proteins,DNA,heat and metal Products ListNo. DescriptionPackagePipette Tips(Universal & Filter)110ul Bulk Tip1000/bag ,10bags/ctn2200ul Bulk Tip1000/bag ,10bags ...