该系列油缸的缸体采用国际标准优质的无缝钢管制成。
The fuel tank of the cylinder series of international standards of quality made of seamless steel tubes.
公司专业生产家居用品和钢管制品，主要有烫衣板、折叠梯、置物架等系列产品。
Company specializes in manufacturing household products and steel tube products, main products are ironing boards, folding ladders, goods racks and other series.
在此基础上，进行了受火时间、截面宽度和钢管外径三个系列对截面温度场影响的分析比较。
Based on it, three serials of members were separately compared and analyzed, including serial of time of under fire, width of CFSTRC and size of the outside diameter of steel tube.
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