butt block 中文意思是什麼
butt block
解釋
對接縫襯墊-
Specification for fabricated fittings of butt - fused polyethylene plastic pipe, fittings, sheet stock, plate stock or block stock
熔縫聚乙烯塑料管管配件片材板材或砧板材製造的配件規范 -
Standard specification for fabricated fittings of butt - fused polyethylene plastic pipe, fittings, sheet stock, plate stock, or block stock
熔接聚乙烯塑料管配件薄板厚板或板坯的成品配件的標準規范
分享友人