It is also known as anaphylactic shock. Signs of anaphylaxis include: 1  itchy skin or a raised, red skin rash. 2  swollen eyes, lips, hands and feet. 3  feeling lightheaded or faint. 4  swelling of the mouth, throat or tongue, which can cause breathing and swallowing difficulties.  wheezing.
Shell Helix synthetic technology oils make use of both synthetic and mineral base stocks to achieve higher performance levels than can be formulated from mineral oils alone. Semi synthetic motor oils help protect your engine. Shell Helix semi-synthetic or âsynthetic technologyâ oils make use of both synthetic and mineral base stocks to achieve higher performance levels than can be formulated from mineral oils alone.
helix (plural helixes or helices) (mathematics) A curve on the surface of a cylinder or cone such that its angle to a plane perpendicular to the axis is constant; the three-dimensional curve seen in a screw or a spiral staircase. (architecture) A small volute under the abacus of a Corinthian capital.