silane crosslinked pipe material 硅烷交联管料
Water pipe material 给水管材
Tap Water Pipe Material 自来水管材
pe pipe material 聚乙烯管材
Plastic extruder for pipe material 塑料管材挤出机
Plastic Pipe Material 塑料管材生产
PPR Pipe material production line PPR管材高速生产线
PIPE MATERIAL CS 管道材质
gas pipe material 燃气管材
new pipe material 新型管材
Square steel-pipe truss is a structure which effectively unions the mature truss manufacturing technology and the new steel-pipe material.
方钢管桁架是一种将成熟的桁架制造技术和新型的钢管材料有机结合的结构体系。
Familiar with or a basic understanding of steel, plate, pipe material price.
熟悉或基本了解钢材，板材，管材等材料的价格。
This pipe material has high strength and its welding process is complicated.
这种管材强度高、焊接工艺复杂。
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