... , and C type 5 gallon cap. 2738 for core, P20 for base. HRC48-51.life: 3,000,000 time 5 ... A, B, and C type 5 gallon cap2738 for core, P20 for base. HRC48-51. life: 3,000,000 times;2738 ... for core, P20 for base. HRC48-51, mold life: 3,000,000 times, ... Specifications:1. Advanced structure is designed in base of 2738 material;2. Core and cavity are made of imported nitrated ...