... 4.good payment and after-sale service Adapter sleeve Materialcast iron or chrome steel(GCR15) or ... and enjoy great reputation in North America. Adapter sleeve(H200 series)H204,H205,H206,H207,H208,H209 ... H3172,H3176,H3180,H3184,H3188,H3192,H3196 Adapter sleeve(H3000 series)H3024,H3026,H3028,H3030,H3032, ... H3072,H3076,H3080,H3084,H3088,H3092,H3096 Adapter sleeve(H2300 series)H2304,H2305,H2306,H2307,H2308, ...