欧美一级黄色片视频-欧美一级黄视频-欧美一级级a在线观看-欧美一级精品-欧美一级精品高清在线观看

Four aspects can test whether a film quality reach the standard: (Shenzhen printing factory) A field density, and the fog, it is the basis to evaluate the quality of the film. Fog is refers to the absolute density of blank film, the upcomingMore >>

I live in Shenzhen, I saw a lot of different, beautiful Shenzhen print for life adds a lot of brilliant color. So qualified printing products have what characteristics? Popular printing surface is very wide, there are also many problems need to paMore >>

1: when the normal printing observation layout, such as the layout of the luminous, indicating that the water is too large, such as the light is normal. 2: stop if found bite version mouth about 1 mm ink that water control is quite good, likMore >>

This printing mode is divided into two kinds: 1. The carving of the concave - the image deep strong, ink concentration is very high, in the image part with micro convex and with a slightly concave phenomenon in the back. 2. Gravure or intaglio rotMore >>

Print album believe that we are more familiar, Shenzhen printing factory to explain the importance of the album printing The album is the enterprise propaganda enterprise image, the delivery of product service information, is more attractiveMore >>

Shenzhen City Jia long run printing Co., Ltd. is one of the printing industry is the largest professional printing enterprise is a set of books, printing and packaging, special printing as one of the provincial-level books fixed-point printing facMore >>