How to solve the failure of paper product packaging and printing

For paper product packaging and printing plants, it is undoubtedly a good way to increase profits on the premise of guaranteeing the quality of packaging printing and printing qualified packaging boxes with poor quality facial paper. However, facial tissues with poor paper quality generall

Manual of human soluble CD38 (sCD38) ELISA kit

Human soluble CD38 (sCD38) enzyme-linked immunoassay (ELISA)

Kit instruction manual

This reagent is for research purpose only: this kit is used to determine the content of soluble CD38 (sCD38) in human serum, plasma and related liquid samples.

Experimental principle

What is the difference between A4 paper and B4 paper

Commonly used paper can be divided into A and B according to size:

Type A is what we usually call large-size paper. The size of the whole paper is 889 * 1194mm, which can be cut A1 (large folio, 570 * 840mm), A2 (big four, 420 * 570mm), A3 (big eight Open, 285 * 420mm), A4 (large s

Technical documentation

1. Printer-related problems.
1. Make sure the printer starts normally.
2. Determine the network type:
Local printing: the printer is directly connected to the computer
1) Network printer: Connect the network cable from the printer.

Rat Calmodulin ELISA Kit

Rat Calmodulin ELISA Kit

(Used in serum, plasma, cell culture supernatant and biological fluid)


This experiment uses the double antibody sandwich ABC-ELISA method. The anti-rat Calmodulin monoclonal antibody was coated on the enzyme plate. The stand

Horizontal 8-page signature

Source: Great China Graphic Arts Network

The rendering of the 8-page horizontal book signature

Folding method:

The first fold is "overla

Overhaul record of offset printing machine

For models such as ROLAND-REKORD (Roland folio two-color machine), in order to reduce the length of the drum shaft head and reduce the torque received by the drum during rotation, the transmission gear is placed on the journal between the inside of the transmission surface and the drum bod