自一九五四年起,我国开始生产石油钻采设备及配件(包括工具,下同),至今已有二十余年历史。这些年来,通过对老厂的技术改造和新建厂等措施,已形成了一批石油机械生产骨干厂,具有较强的生产能力,为石油工业的发展提供了大量的设备及配件。以一九七九年为例,全国石油机械厂就提供了钻机一百余台,钻采配件二万八千余吨。从生产的品种、 Since 1954, China has started producing oil drilling equipment and accessories (including tools, the same below), which has been in existence for more than 20 years. In recent years, a number of backbone plants for petroleum machinery production have been formed through measures such as technical renovation and new plant construction of the old factory, which have strong production capacity and provided a large number of equipment and accessories for the development of the petroleum industry. In 1979, for example, the National Petroleum Machinery Factory provided more than 100 drilling rigs and more than 28,000 tons of drilling accessories. From the production of varieties,