First, the workers put some hot glass onto one end of a long metal pipe.
首先工人们把一些热玻璃放到一根长金属管的一端。
He knocked out his pipe in the big glass ashtray.
他在大玻璃烟灰缸里磕净烟斗。
A enhance inorganic glass steel pipe product method.
一种无机增强玻璃钢管及成型工艺。
A enhance inorganic glass steel pipe product method.
一种无机增强玻璃钢管及成型工艺。
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