... injection mold. For A, B, and C type 5 gallon cap. 2738 for core, P20 for base. HRC48-51. ... life: 3,000,000 time 5 gallon cap injection moldfor A, B, and C type 5 gallon cap2738 for core, P20 for ... assures uniform heating and improves the plastic product quality greatly;5. High efficiency is attained with water cooling at normal temperature ...