半岛bd体育手机客户端 说明
法律信息
Pure-Pac is a registered trademark of sigma-aldrich Co. LLC
Sigma-Aldrich
Magnesium alloy az31
Magnesium-aluminum-zinc alloy, Mg96Al3Zn1
Magnetic copper
Magnetic shielding alloy, Ni77Fe14Cu5Mo4
MALEIC ACID (3-NITROBENZYLIDENE)HYDRAZIDE