LESSO certificate collection

Manufacturer management systems · Guangdong Liansu Technology Industrial Co., Ltd.

ISO 9001:2015

Open PDF

ISO 14001

Open PDF

ISO 45001

Open PDF

PP-R · ICR verification of conformity

Open PDF

F-PPR · ICR verification of conformity

Open PDF

PP-R · GOST-R

Open PDF

PP compression fittings · part 1

Open PDF

PP compression fittings · part 2

Open PDF

Galvanized steel pipes · ECM verification

Open PDF