Feem ntau siv PPR dej yeeb nkab specifications

Rau PPR cov kav dej, feem ntau muag hauv cov khoom siv txhim kho hauv tsev yog cov kav dej PPR nrog rau sab nraud ntawm 20MM thiab 25MM. Ob txoj kab uas hla sab nraud ntawm cov yeeb nkab dej no yog cov kav dej siv ntau tshaj plaws hauv tsev kho kom zoo nkauj ntawm cov yeeb nkab dej qee zaus hauv cov yeeb nkab dej rau hauv tsev yuav siv cov yeeb nkab sab nraud ntawm 32MM PPR dej yeeb nkab, uas kuj yog nyob rau hauv cov tsev loj. , xws li villa kho kom zoo nkauj feem ntau siv me me specifications.