Input-output norms for tennis balls require specified material proportions and verification that imports match export manufacturing use.

Standardised input-output norms for tennis balls list constituent materials and per-dozen proportions-including CIS poly butadiene rubber, high styrene rubber, precipitated silica, zinc oxide, titanium dioxide, accelerators, antioxidants, melton cloth, and packaging components-and note deletion of neoprene rubber and suspension of the SION. Applicants must ensure imported goods correspond to inputs actually used or required in manufacture of the exported tennis balls and comply with the prescribed proportions.

---

---

---