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.
1 Another belt such as the Goodyear 4060740 Gatorback Poly V-Belt retails for $25 to $37. 2  To have a professional mechanic install the serpentine belt, the labor charges can range from $50 to $125 in addition to the parts fee. 3  The total cost including the parts can cost anywhere from $125 to $300. Serpentine belts are available for different types and models of vehicles and the price can be different depending on these factors. 2  They are fairly inexpensive and most auto shops carry them and are not hard to find. 3  The serpentine belt cost can range from $20 to $150.