SGW®-200g Jacketed Glass Test Tube, Shanghai INESA Physico-Optical Instrument Company Limited(CAT#-STEM-L-3007-LGZ) SGW®-100k Temperature Controlled Test Tube (Stainless Steel), Shanghai INESA Physico-Optical Instrument Company Limited(CAT#-STEM-L-3008-LGZ) SGW®-200k Temperature Controlled Test Tube (Stainless Steel), Shanghai INESA Physico-Optical Instrument Company Limited(CAT#-STEM-L-3009-LGZ) SGW®-100KF2 Anticorrosion Temperature Control Test Tube (Hastelloy), Shanghai INESA Physico-Optical Instrument Company Limited(CAT#-STEM-L-3010-LGZ) SGW®-200KF2 Anticorrosion Temperature Control Test Tube (Hastelloy), Shanghai INESA Physico-Optical Instrument Company Limited(CAT#-STEM-L-3011-LGZ) SGW®-101b Standard Quartz Tube, Shanghai INESA Physico-Optical Instrument Company Limited(CAT#-STEM-L-3012-LGZ)