Fujian Minqing DaLong Electrical Factory is a manufacture which focuses on developing, researching, and producing various kinds of copper, iron, spigot, porcelain and plastic screw lamp holders and porcelain knife switch. The quality of our products conforms to international standards GB1406-89(screw), GB1407-80 (spigot), intemational standards IEC-238 and national standards ZBK74003-86. All the switches conforms to IEC669-1 and GB10979-89 and get the Great Wall mark of CCEE With many years production experience, advanced production facilities, exquisite production techniques, powerful tech
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