针管材质：不锈钢针座材质：黄铜、镀铬每盒12支装规格料号内径(mm)外径(mm)12GMN-12G-132.272.7713GMN-13G-131.942.4014GMN-14G-131.642.1015GMN-15G-131.431.8316GMN-16G-131.251.6517GMN-17G-131.111.4918GMN-18G-130.921.2819GMN-19G-130.721.0820GMN-20G-130.610.9121GMN-21G-130.520.8222GMN-22G-130.420.7223GMN-23G-130.340.6424GMN-24G-130.310.5725GMN-25G-130.260.5226GMN-26G-130.250.4627GMN-27G-130.210.42)