WELCOME TO HUAFENGLAB
SinoFeng Educational Apparatus Int'l Limited
Email:marketing@huafenglab.com,
URL:www.huafenglab.com
Address:HONG KONG,CHINA
Material : ZINC alloy, Ni/Cr plated. / Die-cast Aluminum alloy / Aluminum alloy, plastic coated (black)Size: 13mm, 16mm, 21mm, 25mm.
Mobile:13802971364