Your search for "packaging materials" revealed the following:
SS-400-C – Stainless Steel Swagelok Tube Fitting Cap, 1/4 in. Tube OD, 316 SS
Rp 117.000,00
Vendor: APSS Store
View Product
SS-600-1-4 – Stainless Steel Swagelok Tube Fitting Male Connector, 3/8 in. Tube OD x 1/4 in. Male NPT, 316 SS
Rp 218.000,00
Vendor: APSS Store
View Product