Introduced the rigid polyurethane foam plastics entire water foaming craft basic principle.

介绍了硬质聚氨酯泡沫塑料全水发泡工艺的基本原理。

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The basic property of polyamide engineering plastics and application in tractor are introduced. The design and material selection of polyamide engineering plastics parts are discussed.

介绍了聚酰胺工程塑料的基本性能，在拖拉机上的应用现状及聚酰胺塑料零件的选材和设计。

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The fiber paper are used as the basic materials of PVDC latex coating packaging materials, with the same packaging property as painting PVDC on other plastics films.

用纤维纸作p VD C胶乳涂覆型包装材料的基材，具有与以塑料为基材的涂覆膜相同的包装性能。

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Basic Plastics is the largest, responsible for 22.5% of sales, followed by Performance Products (20.9%), Performance Systems (12.4%), Health and Agricultural Sciences (10.2%), Hydrocarbons and Energy (9.6%), Electronic and Specialty Chemicals (9.4%), Coatings and Infrastructure (8.9%), and Basic Chemicals (5.3%).

FORBES: Time To Take A Chance On Dow

It had the good fortune over the past year of seeing the price of ethylene, a basic component for plastics that is derived from oil and natural gas, rise 35% to 55 cents a pound.

FORBES: Magazine Article

The Midland, Michigan-based company still gets 40% of its revenues from basic commodity chemicals and plastics.

FORBES: Chemical transformation