Specification for industrial safety helmets 

 - Shah Alam, Selangor :  Standards & Industrial Research Institute of Malaysia,  1973 
 - 27 p. :  ill. ;  29 cm. 
 - Malaysian Standard ;  MS 183 : 1973 .
 - Malaysian standard ;  MS 183 : 1973 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Helmets--Malaysia<br/>Safety hats--Malaysia