Petrobras said it would not use crude oil as collateral for obtaining
Petra Lenz, manager of BIC chemical laboratory, talks about the improv
The first environmental protection production line for liquid crystal
On March 24-27, 2008, industrial automation exhibition of Western Chin
China's first large ethylene project with imported ethane as raw mater
On February 28, the technical specification for laser TV set jointly d
The first leading enterprise in high-end electrical equipment manufact
The first large tonnage self-propelled semi submersible ship has been
Inspirational! The first unknown job of 9 big men in the carton indust
Several years after China's first large-scale powerful spinning machin
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