Extra - thin - wall stainless steel and plastic composite pipeline 超薄壁不锈钢复合管道
2.
The oil and chemical cleaning technology of tang steel ' s laming cast steel and extra - thin banding hydraulic pressure system 唐钢薄板坯连铸和超薄带钢液压系统的清洗
3.
Technical specification for extra - thin - wall stainless steel and plastic composite pipeline engineering of building water supply 建筑给水超薄壁不锈钢塑料复合管管道工程技术规程
