Classification of service depending on the type of linear material.
NitrileWater, sea water, oils, natural gas
EthylenePropyleneLP stream, hot water,
ketones, esters, alcohols
ButylWater, air, acetone, esters
NeopreneSome freons, oxygen, some
chemicals and solvents
E.P...
Products: contour line drawings,
remote control skateboard