FB 2.20 provides installers and code enforcement officials with comprehensive guidance on the proper selection and application of the most common cable and flexible conduit fittings.
FB 2.20提供安装工人和在选择和应用普通电缆和可伸缩导管配件方面拥有全面指导经验的法典执行官员。
These hazardous location cable glands and strain relief fittings are made of high performance nylon and can be ordered in either blue or black colors.
这些危险场所电缆密封套管和插头由高性能的尼龙材料制造而成，且颜色有蓝色和黑色两种可选。
The National Electrical Manufacturers Association (NEMA) has published FB 2.20-2007 Selection and Installation Guidelines for Fittings for Use with Flexible Electrical Conduit and Cable.
美国国家电气制造商协会出版了FB 2.20 - 2007用于电气管道和电缆配置的选择和安装手册。
Cable pulley bearing Yuyuan Machinery Fittings co. Ltd. is a spherical contact block operation always maintain line contact and make the car mobile and flexible, stable, uniform, low failure rate.
钰源机械配件有限公司的电缆滑车轴承为球面接触，滑车运行始终保持线接触使小车的移动灵活、稳固、均匀，故障率极低。
Cable pulley bearing Yuyuan Machinery Fittings co. Ltd. is a spherical contact block operation always maintain line contact and make the car mobile and flexible, stable, uniform, low failure rate.
钰源机械配件有限公司的电缆滑车轴承为球面接触，滑车运行始终保持线接触使小车的移动灵活、稳固、均匀，故障率极低。
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