Tender For tender enquiry for plasticware item-, test tube stand (polypropylene) for- 16 x 100 mm (12 ml), specification:, tube dia mm-16 mm, places-62, test tube stand (polypropylene) for- 16 x 100 mm (12 ml), specification:, tube dia mm-16 mm, places- 31, test tube stand (polypropylene) for- 12 x 75 mm (5 ml), specification:, tube dia mm -13 mm, places-90 test tube