Wood vinegar is a byproduct from charcoal production. It is a liquid generated from the gas and combustion of fresh wood burning in airless condition. When the gas is cooled, it condenses into liquid.Raw wood vinegar has more than 200 chemicals, such as acetic acid, formaldehyde, ethyl-valerate, methanol, tar, etc.ood vinegar is safe to living matters in the food chain, especially, insects that help pollinate plants. Wood vinegar is made from burning fresh wood in a charcoal kiln, made from a 200-liter oil drum and 120-cm-tall concrete chimney with a 4-inch diameter. The kiln contains 63-83 kg of fresh wood.
The average cost for an Audi A4 Serpentine Belt Replacement is between $80 and $144. Labor costs are estimated between $61 and $78 while parts are priced between $19 and $66. Estimate does not include taxes and fees.
The belt transmits power from the crankshaft or engine to all front end accessory components. Belts are still one of the most efficient ways to transmit power. Drives many components in your engine. Primary function supplies power to the steering system, water pump, air conditioner and alternator. How is it Made? Serpentine belts are made of EPDM, an extremely durable compound used to extend the life of serpentine belts. Why Does it Fail? Belts are standard wear items and should be inspected at roughly 50,000-70,000 miles.