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                       大鉤有4種型號供您選擇:

                       DG225 

                       DG315 

                       DG450/DG450D 

                       DG675

                       大鉤符合API Spec 8A  8C規範。 

                       註:產品型號內的  “D”表示:低溫。


                 



                 

                 

                 

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