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1969 |
In 1969, LHS Metallurgical Machinery Factory, predecessor of LHS Rock Tools, was found. |
1984 |
In 1984, button bits and chisel bits were voted as high quality products by Liaoning Province and CNNC. |
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1985 |
In 1985, ZQ series medium button bits were voted as high quality products by CNNC. |
1986 |
In 1986, LHS Metallurgical Machinery Factory imported production technology of HYD200 hydraulic drifter from Secoma France, and the first Chinese hydraulic drifter rolled off production line in the same year. |
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1987 |
In 1987, LHS was appraised as a key factory of Chinese machinery industry by National Machinery Committee. |
1989 |
In 1989, LHS won National Quality award, approved by National Quality Review Committee |
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1990 |
In 1990, button bits were awarded Golden Eagle of outstanding new products by Liaoning province. |
1991 |
In 1991, LHS imported from Finland thermal insert technology of button bits, which increased the quality of Chinese button bits rapidly. |
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1992 |
Importing from Europe production technology of drill rods in 1992, cooperating with Xi’an University of Technology to develop the first well gas carburizing furnace of 6 meter in China, LHS greatly improved the quality of drill rods in China since many years of development. Now, LHS ranks the first in the industry in China regarding sales volume, market share and export volume. |
1995 |
In 1995, LHS was the first to get ISO 9001 certificate in Chinese nonferrous industry and was awarded import-export operations right by the Chinese Ministry of Foreign Economic Relations and Trade. |
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1996 |
In 1996, ZQ series drilling tools were awarded national new product certificate jointly by Six ministries and commissions of State Scientific and Technological Commission, etc., and voted as an export expanding factory by Liaoning Machinery and Electronics Import and Export Office. |
2001 |
In 2001, LHS Rocktools (Australia) Pty. Ltd was found. After many years of development, LHS Rocktools (Australia) Pty. Ltd grew into the biggest overseas sales force and made great contribution to technical innovation and brand promotion for LHS. |
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2003 |
In 2003, LHS was reformed to a private factory from national ownership. | ||