Compared to the prior art, the age-resistant aerosol generating agent has higher fire-fighting efficiency and faster speed, and the age resistance of the generating agent is enhanced greatly.
The tube is aging resistant, corrosion resistant, high temperature resistant, soft, low shrinkage ratio and environment-friendly.
A new age-resistant aerosol generating agent and preparing process thereof.
Disclosed are a rubber composition suppressed in heat aging, and a pneumatic tire using such a rubber composition.
The invention relates to a socket (1) for a hip joint endoprosthesis (2), wherein the socket (1) is made of non-aging materials and forms a low-abrasion tribological pairing with a ball (3).
A spinning process for making poly(trimethylene terephthalate) yam including supplying poly(trimethylene terephthalate) polymer to a hopper (1), which feeds the polymer to an extruder (2) into a spinning block (3).
Disclosed is a carbon black-filled age-resistant polyolefin wrapping foil which is characterized in that the wrapping foil contains a carbon black having a pH value between 6 and 8.
The catalyst is highly resistant to hydrothermal aging and shows good stability versus SO2 poisoning, making it perfectly suitable for exhaust gas after-treatment purposes.
In addition, the coil-break-free, age-resistant steel used for the hot-galvanized strips is a vacuum steel with a titanium content of 0.02 to 0.04 % or an LD steel with a titanium content of 0.03 to 0.08 %.