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The EGR system routes a number of the exhaust gases (6 ? 10%) through the EGR valve, back in for the Intake System, and finally inside combustion chamber. The exhaust gases are inert i.e. they do not burn inside the combustion chamber; also, the exhaust gases occupy a few of the space which may otherwise be taken from the intake air. This cuts down on level of intake air readily available for the combustion process during each Power Stroke; which often decreases the peak combustion temperatures. This ends in lower NOx emissions. But, using the surge in need for furniture products in high numbers and affordable prices, industry has shifted towards machine made products. This not just includes a fast manufacturing process through top quality machinery but involves the usage of new materials like plastic, wrought iron etc. Also the extravagant bulky patterns are already replaced by clean lines and lightweight designs. Nowadays furniture is made to fit small apartments or rooms instead of large sprawling spaces. Modern furniture is airy; light includes a suitable size and is also crafted having an make an effort to make piece versatile.