The common methods to identify fermented vinegar and biended vinegar are iodine solution method.

Characteristics and preparation of catalyst being used for PET production;

Application and preparation of self-compacting concrete;

Practises in Preparation of Compound Menthol Naristilla and its Analysis;

New sulphur based micronutnent formulation;

Formulation,manufacture and construction of waterproof Concrete of cellar;

The main ingredients,function and the formulation of shampoo are introduced.

Reasonably compound emulsification liquid to prevent hydraulic support system pollution;

Study of the automatic control system for emulsion compound;

Selecting and compounding coating of casting technique using in vanish mould;

Principles of Compounding Hot Mixing High Strength Asphalt Concrete and its Mechanics Characteristics;

Through a great number of experiments,the influences of the components to paste flow and concrete strength during RPC compounding were illustrated ,at the same time,we discussed the mechanism.

This paper introduces the performance, characters, application of plastics additive and plastics compounding process.

Based on real project construction,this paper discusses sulfur mortar s performance,configuration,its application in bridge construction and relevant points for attention.

This paper introduces the construction technology and equipments of mortar intrusion maintenance,presents the problems of removing inconvenience of mortar conveying pipes and heavy labor strength,gives the configurations of mortar conveying pipes.

This article makes a brief analysis of the configuration and debugging of router in the network, the important module in the computer network.