1.Specification of cold rolled steel rod 2.Introduction of cold rolled steel rod To create cold rolled steel, the process of rolling metal involves passing metal stock through one or more pairs of rolls. This serves to achieve uniformity and lower the thi
With 20 years of experience in electronic press button sound book for children ,Professional engineers and designers conduct research design proposals .The press button sound book is the best choice for children's early education, colorful matching colors
G635 Granite is a kind of pink granite quarried in China. This stone is especially good for Countertops, monuments, mosaic, exterior - interior wall and floor applications, fountains, pool and and other design projects. It also called G635,G663,Anxi Hong,
Intelligent read pen is a functional pen which bring muti-languages , sounds and songs. It can read out when you point to the text and pictures.The reading pen and audio book help children build reading skills such as vocabulary, phonics and reading compr
Product lifetime warranty, free supply of glue and cloth for maintenance. Our after-sales service personnel will solve difficult problems for you in time. After receiving customer information, give customers a treatment opinion or technical guidance that