document.write('
'); document.write(''); document.write('
4-Bromo-1-butene, 4-溴-1-丁烯/5g/CAS:5162-44-7'); document.write('¥98
BT-12904-W4-6(铜宝塔转换头/外丝/4分-6)'); document.write('¥20