J 41 n型PN 40钢制截止阀：手动、法兰连接、直通式、阀座密封面材料为尼龙塑料、公称压力pn 40、阀体材料为碳素钢的截止阀。
J41N Type PN40 steel globe valves: manual, flanged, straight-through, the valve seat sealing surface material as nylon plastic, nominal pressure PN40, carbon steel valve body material cut-off valve.
是化纤服装（衬衫还是外套），是尼龙袜（短袜还是长袜），晴纶毛衣还是塑料雨衣？
A polyester shirt or dress, nylon socks or stockings, and acrylic sweater-a raincoat of PVC ( polyvinyl chloride)?
在缝合处，Michael拿出一根粗尼龙绳和一个厚塑料袋。
From inside the stitching, he removes a thick nylon rope and a heavy-duty plastic bag.
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