Anti-friction bearings are used to eliminate friction between contacting surfaces.They restrict the motion of rotating components inside the stationary components and supports the load imposed on the shaft. Ball bearings and roller bearings are the two types of anti-friction bearings.The report covers the present and growth prospects of the global anti-friction bearing market for 2017-2021. The market size is calculated based on the demand for the anti-friction bearings. The market has been segmented based on end-user and geography.

Composites are a combination of two or more materials that have different properties. They have high stiffness and tensile strength, low density, high thermal and electrical conductivity, and adjustable coefficient of thermal expansion. They are also corrosion resistant and stable at high temperatures. Composites are classified based on matrix and filler materials.

Metallic pigments are inorganic pigments with metallic characteristics. These pigments are flake-shaped metallic particles that are available as pastes, powders, pellets, suspensions, or color concentrates. Metallic pigments usually consist of aluminum, gold, zinc, bronze, stainless steel, and nickel. These pigments are used in anticorrosion, heat resistant, reflective, and conductive coatings.

The manufacturing industry has witnessed radicle changes in processes that are used to manufacture things. Earlier, goods were produced with bare hands. Subsequently, with advancements in technology, machines were used to produce goods. This paradigm shift in production techniques is termed as the Industrial Revolution. The Industrial Revolution has its roots in England where it began in the 18th century and was later transferred beyond national boundaries to neighboring countries such as Germany and France. By the second half of the 18th century, the revolution came across the sea to the US. The two most important changes that the Industrial Revolution brought to manufacturing were:

Cladding is a process of bonding two dissimilar methods together. This process is different from other methods like fusion welding, which is used to fasten two different metals together. The cladding is used in a variety of industries to improve the surface and near surface properties of metal, which had become worn through use. Cladding primarily involves creating a new layer on the base metal, which helps in changing properties of the base metal by creating a thin surface layer on it. Each of the different cladding techniques used has its characteristics in terms of process compatibility, cost, materials used, and the quality of the clad layer.

我国不锈钢中含镍较多的300 系产量占比超过50%，在不锈钢体系中占据重要地位。以含镍的300 系不锈钢中，镍的成本最高占比可达70%，因此镍价格的波动对不锈钢的生产成本将产生重大影响。

我国钢铁行业中普碳钢和特殊钢并存，特钢区别于普钢，具有更高的强度和韧性、物理性能、化学性能、生物相容性和工艺性能，应用领域更广泛。不锈钢作为特钢的重要分支，其应用领域相对更特殊，性能要求更高。

钢材出口回落，低库支撑价格高位，6 月钢材累计出口4099 万吨，累计进口680 万吨，累计净出口量3419 万吨，同比降低32.51%。7 月14 日全国高炉开工率为77.21%，环比上周下降0.55 个百分点，开工持续回落，五大品种社会库存923.69 万吨，周环比减少15.55 万吨。螺纹钢库存下降2.23 万吨，库存继续去化，显示出了长流程见顶，增量空间有限而短流程增量仍需时间的现实状况，主流钢厂基于厂内低库坚挺价格，现货价格维持强势。

本周钢材价格涨幅明显。需求端，2017 年1-5 月，房地产开发投资完成额累计同比增长8.8%，环比首降0.5%；基建投资累计同比增长16.7%，连续3 月累计下降4.6%。下游需求仍处较高水平但下行压力不减，叠加本周我国进入入夏以来最大范围高温天气，需求表现疲弱。

Fuse holders are electronic devices that are used for containing, mounting, and protecting fuses. Fuse holders basically come in two types: open and fully enclosed. Open fuse holders are fuse blocks, clips, plug-in caps, and socket varieties. Fully enclosed fuse holders use a fuse carrier, which is inserted into the holder or some other part to fully enclose the fuse.