Liquefied Petroleum Gas (Lpg) For Metal Cutting Gas As Per Is:4576/1999 (Reaffirmed 2009) Fill Ed In 19 Kg Capacity Firms Cylinder On Door Delivery Basis As And When Required By Sse/ C&W/Rdm. The Cy Linder Will Be Returned As And When Become Empty, By Railways To Firm And The Empty Cylinders To Be C Ollected By The Firm ]