Commercial interchangeability; 19 U.S.C. 1313(j)(2); polyisobutylene
The tariff classification of a polyisobutylene polyethylene copolymer from France.
The tariff classification of Polyisobutylene (CAS Reg No.9003-29-6), in clay form, from Japan
HQ 956585 revoked; PURADD FD-100, previously known as Pluradyne FD-100
Application for Further Review of Protest 3901-08-101355; Duty Suspension of Polyisobutylene