<#webadvjs#>

被三个男人绑着躁我好爽_国产在线精品二区_老司机午夜精品视频资源_精品无码国产污污污免费网站国产

·§??í???

???12?Da????Dí??·§

2ú?·Dío??o Z41W

2ú?·?ú???o DN15??DN600  

2ú?·?1á|?o 0.6??10.0MPa  

2ú?·2??ê?o ?y????2?Da????o??e???è  

áa?????°?o 15901687301  

 


??Dí2?Da?????1??·§2ú?·?ééü?o
??Dí2?Da?????1??·§ê???±eóúêD3?é?ò?D??¨·§??2?á?'?2???±ê×???·§??±úo?1y±????áDí2?Da????·§???×3?????Dí2?Da?????1??·§????2???????2?á?íêè?·?o?1ú?úía?à1?2??ê±ê×???òa?ó??

2?Da????·§ó|ó?·??§?o

???1·¨à?á??ó????Dí2?Da?????1??·§êêó?óú1?3??1á|PN40??PN160,1¤×÷???è≤-29????550????ê?óí????1¤????á|???eá|?????÷????í3??1ü?·é????D???ò?óí¨1ü?·?é?ê??

2?Da????Dí??·§êêó??é?ê?a?o

????óí?·?????????á??????°±???ò????o?áòììè????è??

2?Da????·§?á11ì????o
1??2?Da????·§??2???????·?o?1ú?úía2?Da??·§???à1?±ê×???2?á???è????êá?????
2??2ú?·???ì·?o?1ú?úía?è??±ê×???òa?ó????·§?ü·a?é????D??üó?á????ìDí?à1???
3???ü·a?±?????è??o?àí????°?oí·§×ù???ü·a??2éó?2?í?ó2?è????ì?á??¨Stellite???ü?ùó2?êo??e??o???3é???ü·a?é????ó2?è?????í?????í???????í??ê'???12áé?D??üo???êù?ü3¤?? 4????·§·§???-?÷?ê?°±í???a??'|àí??óDá?o????1??ê'D????12áé?D?oí?í??D???
5????·§2éó?D¨ê???D???°??á11???D'ó?ú??éè??í?á|?á3D????2áá|D???2???óD×2?÷ê???????±??á?é×?è???
6???é2éó??÷????1ü·¨à?±ê×??°·¨à??ü·a??D?ê????ú×??÷??1¤3ìDèòa?°ó??§òa?ó??

2?Da????·§±ê×?1?·??o
éè?????ì±ê×??oGB/T 12234-2007
?á113¤?è±ê×??oGB/T 12221-2005
á??ó·¨à?±ê×??oGB/T 9113
?1á|???è?è???oGB/T 12224-2005
ê??é?ì?é±ê×??oGB/T 13927-2008