Sigma-Aldrich
Sericin Bombyx mori (silkworm)
丝胶朊 家蚕 (蚕)
Silicon carbide-reaction bonded
Silver
银
Sodium cholate hydrate
3α,7α,12α-Trihydroxy-5β-cholan-24-oic acid sodium salt
Spatulas with wooden handle
Stainless Steel-AISI 431 alloy, Fe82Cr16Ni2
Suspended stirring bars
Tantalum
钽