In this paper, according to the contrast between geological and productive exploration, we have a discussion about the exploration way of level 10 13 of Fengshan Cu ore body 29 in Sanjiachang Cu deposit, an examination of the reasonableness of exploration type, net and a summary of the available exploration experience.

Located in the west of the Yimen copper belt in Yunnan, the Sanjiachang copper deposits are divided into the Shishan type and the Fengshan type, according to their occurrence, mineral assemblage and mineralization.

The relationship between manufacturers and intermediaries is rather intimate yet subtle.

A infrared spectrogram library of plastic resin was founded,and a information library of plastic resin which includes Chinese name、English name、shortened form、model、nation of manufacturer、manufacturer、trade name、molecular formula,brief structure and characteristic peak value of each spectrogram was founded also.

The present of major manufacturers and new products of the tent materials both domestic and abroad are introduced.

There are 3 main producers of acrylic acid and acrylates in China which are Beijing Dongfang Chemical Plant, Jil-ian (Jilin) Chemical Corporation and Acrylic Acid Plant of Shang.