31
Variant SBL:
Housing: sheet steel, zinc plated, blue passivated
Ball: steel, bare
variant SKU:
housing: sheet steel, zinc plated, blue passivated
ball: plastic (polyacetal POM)
variant SNI:
housing: sheet steel, zinc plated, blue passivated
ball: stainless steel, stainless, 1.4034
variant NNI:
housing: stainless steel sheet 1.4301
ball: stainless steel, stainless, 1.4034