Daming Changda Co.,Ltd. can provide laboratory quantities of a wide range of materials for R & D usage. These are sourced from a small number of carefully selected producers in China. All products are manufactured by Companies committed to today's most rigorous global norms in their Quality Management practices, environment and hygiene-oriented methods, and safety standards. Kindly let us have your specific inquiries by return for us to submit our offers The list includes items in stock or supplied but is not exhaustive and we would be happy to quote for items not shown.