well that is going to depend mainly on the type of plastic you use each type of plastic has a different melting point part of the way to tell what plastic you have is by looking at the recycle symbol you have on the plastic 1 pete or polyethylene terepthelate 2 hdpe or high density polyethylene 5 pp or polypropylene i d recommend sticking to these 3 types of plastics
The partial state tax exemption rate will increase on January 1, 2013, to 7.67% for diesel fuel used for farming and food processing. This rate will be in effect through June 30, 2013, at which time the rate is scheduled to decrease to 7.44%.
Personal income tax. Michigan's personal income tax rate dropped to 4.25% on Jan. 1, 2013. Michigan tax returns are due by April 15, or the next business day if that date falls on a weekend or holiday. Several cities also impose additional income taxes, meaning different forms must be filed in varying municipalities.