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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. Next to contact breaker, spark plug is among the most weakest part of the ignition system. It is mounted within the combustion chamber from the engine, where working conditions are- severe. During peak combustion conditions the temperature inside the combustion chamber in the modern car engine may be around 2500 ºC and the pressure about 7 Mpa. Moreover a spark plug can also be exposed to thermal and load cycling fatigue on account of sudden changes in temperature and pressure-from the high temperature of burnt gas on the relatively low temperature with the air/fuel mixture and from the ruthless during the time of explosion from the air/fuel mixture to low pressure during induction. In addition, the spark plug needs to endure high voltage, mechanical vibration along with the corrosive atmosphere of combustion gages. A modern spark plug posseses an economical life of about 10,000-16,000 km. Those that support animal testing claim that is a necessary practice. They explain that businesses that rely on animal testing do use humane ways to feed, house and care for the animals. Supporters also claim that alternatives to animal testing aren't as far reaching, lacking the opportunity to figure out how cosmetic products affect living tissue and organs.