
Cast Iron Specials for Mechanical and Push-on Flexible Joints for Pressure Pipes for Water, Gas and Sewage — Specification ( Second Revision )
出版:Bureau of Indian Standards

專家解讀視頻
Cast Iron Specials for Mechanical and Push-on Flexible Joints for Pressure Pipes for Water, Gas and Sewage — Specification ( Second Revision )
出版:Bureau of Indian Standards
專家解讀視頻