(1) Unit of paper:
A. grams: the weight of one square meter of paper;
B. Order: 500 sheets of paper unit weighing order (factory specification);
C. Tons: 1 ton = 1000 kg as usual units, which is used to calculate the paper price.
(2) Paper specification and name
A. Paper is most commonly available in four formats:
(1) Positive paper: length 1092 mm, width 787 mm;
(2) Generous paper: length 1194 mm, width 889 mm;
(3) Carbonless paper: there are positive and generous specifications, but there are paper, paper, paper, paper prices, among which the paper is more expensive.
B. The most common names for paper:
A. Typing paper (color typing paper): 28g positive specifications: used for joint orders and forms, there are seven colors: white, yellow, blue, green, etc.
b. Glossy paper: 1. 28-40g positive specifications: one side is bright, used for joint sheets, forms, and notes, and is low-grade printing paper.
c. Writing paper: 55-100 magnanimity and positive degree, used for low-grade printing, with the most domestic paper.
d. Double offset paper: 60-150g magnanimity and positive degree, which are commonly used for mid-range printing materials in China, joint ventures and imports. （60g、70g、80g、100g、120g、150g）
e. Newsprint: 55-60g roller paper, positive paper, newspaper selection.
F, carbonless paper: 47-52g magnanimity, positive degree, there is a direct copy function, divided on, middle and lower paper, the upper middle and lower paper can not be exchanged or reused, the paper price is different, there are seven colors, often used in the single sheet, table.
g. Coated paper: double copper 80-300g positive and generous
for high-end prints. （80g、105g、128g、157g、200g、230g、250g、300g）
H. Powder paper: 105-300g for elegant, high-grade color printing. （105g、128g、157g、200g、230g、250g、300g）
i. Gray background white board paper (white background white board paper, white background gray board paper): more than 250g, white background gray, used for packaging.
j. White cardboard: 230-300g double-sided white, used for mid-range packaging. （210g、230g、250g、300g、350g、）
K kraft paper: 80-150g for packaging, cartons, document bags, file bags (120g), envelopes (ordinary envelopes 100g). (60g, 80g, 100g, 120g, 150g with white kraft paper)
