32PCS Valve Core Remover Installer ToolValve Core Remover Installer Tool with Dual Size SAE 1 4 & 5 16 Port, 20 PCS Valve Cores with Teflon Seal and 10 PCS Brass Nuts, Compatible with R22 R12 R407 R410 R404 R32 R600 A C Product description Valve core removal wrench basic operation 1. Pull out the dead point on the stem, close the valve on the tool, adjust the joint of the tool to the air conditioning interface, and tighten the valve on the air conditioning. 2. Make sure that the tool is
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