色琪琪www618seon_日本久久综合视频_free性丰满白嫩白嫩的hd_五月婷六月丁香狠狠躁狠狠爱_亚洲精品久久久久久久小说_涩涩屋色多多

鍛鋼閘閥

　　相關型號：Z11H,Z11H-16,Z11H-25,Z11H-40,Z11H-64,Z11H-100

使用標準：
Usage specification：

1. 設計制造：按GB12224-89、GB12228-89、JB/T7746-95
2. 連接端尺寸：(1) 承插孔尺寸接JB1751-75
3. 閥門檢驗和試驗：按GB/T13927-92
4. 材料
   1. 碳鋼按GB699的規定
   2. 不銹鋼按GB1220的規定
   3. )耐熱鋼按GB1221的規

1. Design and manufacture conform to standard:GB1224-89,GB1228-89,JB/T7746-95
2. The connecting dimensions:The dimensions of holls conform to standard JB1751-75
3. Nspectionand test conform to standard GB/13927-92
4. Material
   1. steel casing iron conform to standard GB669
   2. stainless steel conform to standard GB1220
   3. steam-resisting steel conform to standard GB12

主要零件材料 Matcrial for main parts

主要尺寸及重量Main dimensions and weight