PB资源列表

[国外标准] NEMA PB 2.2-1999(R2004, R2009) Application Guide for Ground Fault Protective (GFP) Devices for Equip

[国外标准] AS 5082.2-2007 Polybutylene (PB) plumbing pipe systems - Metric series Part 2 Mechanical and fusion

[国外标准] AS 5082.1-2007 Polybutylene (PB) plumbing pipe systems - Metric series Part 1 Metric polybutylene (P

[国外标准] JIS K6778-2009 聚烯烃(PB)管(追補1)

[国外标准] JIS K6778-2004 聚烯烃(PB)管

[计量检定规程] JJG 503-1987 PB-2型十进频率仪检定规程