法兰

shè jì zǔ zhuāng le hàn jiē tāi jù bǎo zhèng le jiǎo gāng fǎ lán chéng xíng hòu de jǐ hé chǐ cùn

设计组装了焊接胎具，保证了角钢法兰成型后的几何尺寸。

The welding assembly equipments are designed to control the angle steel flange geometric dimensions.

fǎ lán róng xù

法兰绒T恤

a flannel shirt