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罗宾逊斯公司(驻英国切特菲尔德)研制成一种聚乙烯边缘锁合盖(Lock-on-Lid)用于65毫米和75毫米Vitello复合罐上。使用这种新盖需要特殊工具,因为盖边缘部分紧
Robinson’s (Chetfield, UK) has developed a polyethylene Lock-on-Lid for 65- and 75-mm Vitello tanks. The use of this new cap requires special tools because the edge of the cap is partially tight