All physical - properties of the vulcanizate achieved the property requirements of oil pump bushing according to the petroleum and natural gas industry standards (SY5549-92) at home.
硫化胶的各项物理机械性能均达到我国石油天然气行业标准(SY5549- 92)中抽油泵村套橡胶性能要求。
After WTO entry, China's petroleum and chemical industry will face more fierce competition at home and abroad.
加入WTO后中国的石油和化工产业将面临着更为激烈的国际国内竞争。
To introduce the covering scope of wire rope for petroleum and nature gas industry, analyze new characteristic of its requirement at home and forecast the market.
介绍石油天然气工业用钢丝绳涵盖范围，分析其国内需求新特点并进行市场预测。
To introduce the covering scope of wire rope for petroleum and nature gas industry, analyze new characteristic of its requirement at home and forecast the market.
介绍石油天然气工业用钢丝绳涵盖范围，分析其国内需求新特点并进行市场预测。
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